396738556 has 12 divisors (see below), whose sum is σ = 696556168. Its totient is φ = 197722512.

The previous prime is 396738533. The next prime is 396738581. The reversal of 396738556 is 655837693.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 160311 + ... + 162766.

Almost surely, 2^396738556 is an apocalyptic number.

It is an amenable number.

396738556 is a deficient number, since it is larger than the sum of its proper divisors (299817612).

396738556 is a wasteful number, since it uses less digits than its factorization.

396738556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 323388 (or 323386 counting only the distinct ones).

The product of its digits is 4082400, while the sum is 52.

The square root of 396738556 is about 19918.2970155583. The cubic root of 396738556 is about 734.7982885478.

The spelling of 396738556 in words is "three hundred ninety-six million, seven hundred thirty-eight thousand, five hundred fifty-six".