396989490250 has 16 divisors (see below), whose sum is σ = 743164326216. Its totient is φ = 158795796000.

The previous prime is 396989490239. The next prime is 396989490323. The reversal of 396989490250 is 52094989693.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 30835008801 + 366154481449 = 175599^2 + 605107^2 .

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, 793978731 + ... + 793979230.

Almost surely, 2^396989490250 is an apocalyptic number.

396989490250 is a deficient number, since it is larger than the sum of its proper divisors (346174835966).

396989490250 is a wasteful number, since it uses less digits than its factorization.

396989490250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1587957978 (or 1587957968 counting only the distinct ones).

The product of its (nonzero) digits is 37791360, while the sum is 64.

The spelling of 396989490250 in words is "three hundred ninety-six billion, nine hundred eighty-nine million, four hundred ninety thousand, two hundred fifty".