390072190 has 8 divisors (see below), whose sum is σ = 702129960. Its totient is φ = 156028872.

The previous prime is 390072173. The next prime is 390072197. The reversal of 390072190 is 91270093.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×390072190² = 304312626822792200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (390072197) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19503600 + ... + 19503619.

It is an arithmetic number, because the mean of its divisors is an integer number (87766245).

Almost surely, 2^390072190 is an apocalyptic number.

390072190 is a deficient number, since it is larger than the sum of its proper divisors (312057770).

390072190 is a wasteful number, since it uses less digits than its factorization.

390072190 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39007226.

The product of its (nonzero) digits is 3402, while the sum is 31.

The square root of 390072190 is about 19750.2453149322. The cubic root of 390072190 is about 730.6594341554.

The spelling of 390072190 in words is "three hundred ninety million, seventy-two thousand, one hundred ninety".