490121237 has 16 divisors (see below), whose sum is σ = 542712960. Its totient is φ = 440259072.

The previous prime is 490121231. The next prime is 490121239. The reversal of 490121237 is 732121094.

It is a cyclic number.

It is not a de Polignac number, because 490121237 - 2²⁴ = 473344021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (490121231) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 221378 + ... + 223580.

It is an arithmetic number, because the mean of its divisors is an integer number (33919560).

Almost surely, 2^490121237 is an apocalyptic number.

It is an amenable number.

490121237 is a deficient number, since it is larger than the sum of its proper divisors (52591723).

490121237 is a wasteful number, since it uses less digits than its factorization.

490121237 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2812.

The product of its (nonzero) digits is 3024, while the sum is 29.

The square root of 490121237 is about 22138.6819165008. The cubic root of 490121237 is about 788.4385313841.

The spelling of 490121237 in words is "four hundred ninety million, one hundred twenty-one thousand, two hundred thirty-seven".