399341544 has 64 divisors (see below), whose sum is σ = 1201036800. Its totient is φ = 108091584.

The previous prime is 399341539. The next prime is 399341557. The reversal of 399341544 is 445143993.

It is a super-3 number, since 3×399341544³ (a number of 27 digits) contains 333 as substring.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a junction number, because it is equal to n+sod(n) for n = 399341496 and 399341505.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 59362 + ... + 65745.

It is an arithmetic number, because the mean of its divisors is an integer number (18766200).

Almost surely, 2^399341544 is an apocalyptic number.

It is an amenable number.

399341544 is an abundant number, since it is smaller than the sum of its proper divisors (801695256).

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

399341544 is a wasteful number, since it uses less digits than its factorization.

399341544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125142 (or 125138 counting only the distinct ones).

The product of its digits is 233280, while the sum is 42.

The square root of 399341544 is about 19983.5318199762. The cubic root of 399341544 is about 736.4017822419.

The spelling of 399341544 in words is "three hundred ninety-nine million, three hundred forty-one thousand, five hundred forty-four".