396363791040 has 1008 divisors, whose sum is σ = 1637095564512. Its totient is φ = 80721543168.

The previous prime is 396363791027. The next prime is 396363791111. The reversal of 396363791040 is 40197363693.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 288683794 + ... + 288685166.

Almost surely, 2^396363791040 is an apocalyptic number.

396363791040 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 396363791040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (818547782256).

396363791040 is an abundant number, since it is smaller than the sum of its proper divisors (1240731773472).

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

396363791040 is a wasteful number, since it uses less digits than its factorization.

396363791040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1462 (or 1426 counting only the distinct ones).

The product of its (nonzero) digits is 2204496, while the sum is 51.

The spelling of 396363791040 in words is "three hundred ninety-six billion, three hundred sixty-three million, seven hundred ninety-one thousand, forty".