396440475 has 24 divisors (see below), whose sum is σ = 656051760. Its totient is φ = 211240320.

The previous prime is 396440423. The next prime is 396440483. The reversal of 396440475 is 574044693.

It is not a de Polignac number, because 396440475 - 2⁹ = 396439963 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 121161 + ... + 124389.

It is an arithmetic number, because the mean of its divisors is an integer number (27335490).

Almost surely, 2^396440475 is an apocalyptic number.

396440475 is a deficient number, since it is larger than the sum of its proper divisors (259611285).

396440475 is a wasteful number, since it uses less digits than its factorization.

396440475 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4879 (or 4874 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 42.

The square root of 396440475 is about 19910.8130170518. The cubic root of 396440475 is about 734.6142174658.

The spelling of 396440475 in words is "three hundred ninety-six million, four hundred forty thousand, four hundred seventy-five".