396358440 has 32 divisors (see below), whose sum is σ = 1189075680. Its totient is φ = 105695552.

The previous prime is 396358429. The next prime is 396358453. The reversal of 396358440 is 44853693.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 396358392 and 396358401.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1651374 + ... + 1651613.

It is an arithmetic number, because the mean of its divisors is an integer number (37158615).

Almost surely, 2^396358440 is an apocalyptic number.

396358440 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

396358440 is an abundant number, since it is smaller than the sum of its proper divisors (792717240).

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

396358440 is a wasteful number, since it uses less digits than its factorization.

396358440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3303001 (or 3302997 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 42.

The square root of 396358440 is about 19908.7528489356. The cubic root of 396358440 is about 734.5635429943.

The spelling of 396358440 in words is "three hundred ninety-six million, three hundred fifty-eight thousand, four hundred forty".