390961230 has 32 divisors (see below), whose sum is σ = 1023608448. Its totient is φ = 94778400.

The previous prime is 390961217. The next prime is 390961253. The reversal of 390961230 is 32169093.

It is a super-2 number, since 2×390961230² = 305701366726225800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a junction number, because it is equal to n+sod(n) for n = 390961191 and 390961200.

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, 592036 + ... + 592695.

It is an arithmetic number, because the mean of its divisors is an integer number (31987764).

Almost surely, 2^390961230 is an apocalyptic number.

390961230 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

390961230 is an abundant number, since it is smaller than the sum of its proper divisors (632647218).

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

390961230 is a wasteful number, since it uses less digits than its factorization.

390961230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1184752.

The product of its (nonzero) digits is 8748, while the sum is 33.

The square root of 390961230 is about 19772.7395673943. The cubic root of 390961230 is about 731.2141114683.

The spelling of 390961230 in words is "three hundred ninety million, nine hundred sixty-one thousand, two hundred thirty".