399089995629390 has 48 divisors (see below), whose sum is σ = 1117451987765568. Its totient is φ = 98237537385408.

The previous prime is 399089995629373. The next prime is 399089995629421. The reversal of 399089995629390 is 93926599980993.

399089995629390 is a `hidden beast` number, since 3 + 9 + 9 + 0 + 8 + 9 + 9 + 9 + 562 + 9 + 39 + 0 = 666.

It is a super-2 number, since 2×399089995629390² (a number of 30 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (90).

It is a self number, because there is not a number n which added to its sum of digits gives 399089995629390.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 170551279014 + ... + 170551281353.

It is an arithmetic number, because the mean of its divisors is an integer number (23280249745116).

Almost surely, 2^{399089995629390} is an apocalyptic number.

399089995629390 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

399089995629390 is an abundant number, since it is smaller than the sum of its proper divisors (718361992136178).

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

399089995629390 is a wasteful number, since it uses less digits than its factorization.

399089995629390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 341102560393 (or 341102560390 counting only the distinct ones).

The product of its (nonzero) digits is 20662426080, while the sum is 90.

The spelling of 399089995629390 in words is "three hundred ninety-nine trillion, eighty-nine billion, nine hundred ninety-five million, six hundred twenty-nine thousand, three hundred ninety".