391204230 has 16 divisors (see below), whose sum is σ = 938890224. Its totient is φ = 104321120.

The previous prime is 391204213. The next prime is 391204273. The reversal of 391204230 is 32402193.

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 391204230.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6520041 + ... + 6520100.

It is an arithmetic number, because the mean of its divisors is an integer number (58680639).

Almost surely, 2^391204230 is an apocalyptic number.

391204230 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

391204230 is an abundant number, since it is smaller than the sum of its proper divisors (547685994).

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

391204230 is a wasteful number, since it uses less digits than its factorization.

391204230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13040151.

The product of its (nonzero) digits is 1296, while the sum is 24.

The square root of 391204230 is about 19778.8834366351. The cubic root of 391204230 is about 731.3655742520.

The spelling of 391204230 in words is "three hundred ninety-one million, two hundred four thousand, two hundred thirty".