399411136 has 14 divisors (see below), whose sum is σ = 792581600. Its totient is φ = 199705536.

The previous prime is 399411119. The next prime is 399411137. The reversal of 399411136 is 631114993.

It is a junction number, because it is equal to n+sod(n) for n = 399411095 and 399411104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (399411137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3120336 + ... + 3120463.

Almost surely, 2^399411136 is an apocalyptic number.

It is an amenable number.

399411136 is a deficient number, since it is larger than the sum of its proper divisors (393170464).

399411136 is an equidigital number, since it uses as much as digits as its factorization.

399411136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6240811 (or 6240801 counting only the distinct ones).

The product of its digits is 17496, while the sum is 37.

The square root of 399411136 is about 19985.2729778705. The cubic root of 399411136 is about 736.4445565680. Note that the first 3 decimals are identical.

The spelling of 399411136 in words is "three hundred ninety-nine million, four hundred eleven thousand, one hundred thirty-six".