945620 has 24 divisors (see below), whose sum is σ = 2139144. Its totient is φ = 349056.

The previous prime is 945601. The next prime is 945629. The reversal of 945620 is 26549.

It can be written as a sum of positive squares in 4 ways, for example, as 31684 + 913936 = 178^2 + 956^2 .

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a self number, because there is not a number n which added to its sum of digits gives 945620.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (945629) by changing a digit.

945620 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 7 ways as a sum of consecutive naturals, for example, 1559 + ... + 2078.

It is an arithmetic number, because the mean of its divisors is an integer number (89131).

2⁹⁴⁵⁶²⁰ is an apocalyptic number.

It is an amenable number.

945620 is an abundant number, since it is smaller than the sum of its proper divisors (1193524).

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

945620 is a wasteful number, since it uses less digits than its factorization.

945620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3659 (or 3657 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 945620 is about 972.4299460630. The cubic root of 945620 is about 98.1534455781.

The spelling of 945620 in words is "nine hundred forty-five thousand, six hundred twenty".