234971990 has 16 divisors (see below), whose sum is σ = 461399760. Its totient is φ = 85444320.

The previous prime is 234971987. The next prime is 234972019. The reversal of 234971990 is 99179432.

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, 1067945 + ... + 1068164.

It is an arithmetic number, because the mean of its divisors is an integer number (28837485).

Almost surely, 2^234971990 is an apocalyptic number.

234971990 is a deficient number, since it is larger than the sum of its proper divisors (226427770).

234971990 is a wasteful number, since it uses less digits than its factorization.

234971990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2136127.

The product of its (nonzero) digits is 122472, while the sum is 44.

The square root of 234971990 is about 15328.7961040651. The cubic root of 234971990 is about 617.0760605911.

The spelling of 234971990 in words is "two hundred thirty-four million, nine hundred seventy-one thousand, nine hundred ninety".