396932040 has 96 divisors (see below), whose sum is σ = 1357948800. Its totient is φ = 100275840.

The previous prime is 396932033. The next prime is 396932047. The reversal of 396932040 is 40239693.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (396932033) and next prime (396932047).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 396931986 and 396932004.

It is not an unprimeable number, because it can be changed into a prime (396932047) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 22176 + ... + 35855.

It is an arithmetic number, because the mean of its divisors is an integer number (14145300).

Almost surely, 2^396932040 is an apocalyptic number.

396932040 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

396932040 is an abundant number, since it is smaller than the sum of its proper divisors (961016760).

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

396932040 is a wasteful number, since it uses less digits than its factorization.

396932040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58067 (or 58060 counting only the distinct ones).

The product of its (nonzero) digits is 34992, while the sum is 36.

The square root of 396932040 is about 19923.1533648667. The cubic root of 396932040 is about 734.9177195135.

The spelling of 396932040 in words is "three hundred ninety-six million, nine hundred thirty-two thousand, forty".