399914676 has 144 divisors (see below), whose sum is σ = 1192464000. Its totient is φ = 112952448.

The previous prime is 399914657. The next prime is 399914687. The reversal of 399914676 is 676419993.

399914676 is a `hidden beast` number, since 3 + 99 + 91 + 467 + 6 = 666.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1716256 + ... + 1716488.

It is an arithmetic number, because the mean of its divisors is an integer number (8281000).

Almost surely, 2^399914676 is an apocalyptic number.

399914676 is a gapful number since it is divisible by the number (36) 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 399914676, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (596232000).

399914676 is an abundant number, since it is smaller than the sum of its proper divisors (792549324).

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

399914676 is a wasteful number, since it uses less digits than its factorization.

399914676 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 403 (or 384 counting only the distinct ones).

The product of its digits is 2204496, while the sum is 54.

The square root of 399914676 is about 19997.8667862350. The cubic root of 399914676 is about 736.7539066186.

The spelling of 399914676 in words is "three hundred ninety-nine million, nine hundred fourteen thousand, six hundred seventy-six".