945540 has 96 divisors (see below), whose sum is σ = 3144960. Its totient is φ = 235008.

The previous prime is 945521. The next prime is 945547. The reversal of 945540 is 45549.

945540 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an Ulam number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 945540.

It is not an unprimeable number, because it can be changed into a prime (945547) by changing a digit.

945540 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9129 + ... + 9231.

It is an arithmetic number, because the mean of its divisors is an integer number (32760).

2⁹⁴⁵⁵⁴⁰ is an apocalyptic number.

945540 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 945540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1572480).

945540 is an abundant number, since it is smaller than the sum of its proper divisors (2199420).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

945540 is a wasteful number, since it uses less digits than its factorization.

945540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138 (or 130 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 945540 is about 972.3888111244. The cubic root of 945540 is about 98.1506775539.

It can be divided in two parts, 945 and 540, that added together give a triangular number (1485 = T₅₄).

The spelling of 945540 in words is "nine hundred forty-five thousand, five hundred forty".