347972290 has 16 divisors (see below), whose sum is σ = 653583168. Its totient is φ = 133137136.

The previous prime is 347972281. The next prime is 347972293. The reversal of 347972290 is 92279743.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (347972293) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 756232 + ... + 756691.

It is an arithmetic number, because the mean of its divisors is an integer number (40848948).

Almost surely, 2^347972290 is an apocalyptic number.

347972290 is a deficient number, since it is larger than the sum of its proper divisors (305610878).

347972290 is a wasteful number, since it uses less digits than its factorization.

347972290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1512953.

The product of its (nonzero) digits is 190512, while the sum is 43.

The square root of 347972290 is about 18654.0153854338. The cubic root of 347972290 is about 703.3662957581.

The spelling of 347972290 in words is "three hundred forty-seven million, nine hundred seventy-two thousand, two hundred ninety".