945405 has 32 divisors (see below), whose sum is σ = 1728000. Its totient is φ = 490176.

The previous prime is 945397. The next prime is 945409. The reversal of 945405 is 504549.

It is not a de Polignac number, because 945405 - 2³ = 945397 is a prime.

It is a super-2 number, since 2×945405² = 1787581228050, which contains 22 as substring.

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

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 945405.

It is not an unprimeable number, because it can be changed into a prime (945409) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6271 + ... + 6419.

It is an arithmetic number, because the mean of its divisors is an integer number (54000).

2⁹⁴⁵⁴⁰⁵ is an apocalyptic number.

It is an amenable number.

945405 is a deficient number, since it is larger than the sum of its proper divisors (782595).

945405 is a wasteful number, since it uses less digits than its factorization.

945405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210 (or 204 counting only the distinct ones).

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

The square root of 945405 is about 972.3193919695. The cubic root of 945405 is about 98.1460061591.

The spelling of 945405 in words is "nine hundred forty-five thousand, four hundred five".