396236993040 has 960 divisors, whose sum is σ = 1627131856896. Its totient is φ = 84519272448.

The previous prime is 396236993029. The next prime is 396236993063. The reversal of 396236993040 is 40399632693.

It is a happy number.

396236993040 is a `hidden beast` number, since 3 + 9 + 623 + 6 + 9 + 9 + 3 + 0 + 4 + 0 = 666.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 464521254 + ... + 464522106.

Almost surely, 2^396236993040 is an apocalyptic number.

396236993040 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 396236993040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (813565928448).

396236993040 is an abundant number, since it is smaller than the sum of its proper divisors (1230894863856).

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

396236993040 is a wasteful number, since it uses less digits than its factorization.

396236993040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1016 (or 1007 counting only the distinct ones).

The product of its (nonzero) digits is 5668704, while the sum is 54.

The spelling of 396236993040 in words is "three hundred ninety-six billion, two hundred thirty-six million, nine hundred ninety-three thousand, forty".