399414054 has 32 divisors (see below), whose sum is σ = 862009344. Its totient is φ = 122649120.

The previous prime is 399414049. The next prime is 399414073. The reversal of 399414054 is 450414993.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35899 + ... + 45689.

It is an arithmetic number, because the mean of its divisors is an integer number (26937792).

Almost surely, 2^399414054 is an apocalyptic number.

399414054 is an abundant number, since it is smaller than the sum of its proper divisors (462595290).

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

399414054 is a wasteful number, since it uses less digits than its factorization.

399414054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10332.

The product of its (nonzero) digits is 77760, while the sum is 39.

The square root of 399414054 is about 19985.3459814935. The cubic root of 399414054 is about 736.4463499915.

The spelling of 399414054 in words is "three hundred ninety-nine million, four hundred fourteen thousand, fifty-four".