42590290 has 16 divisors (see below), whose sum is σ = 76767768. Its totient is φ = 17012736.

The previous prime is 42590281. The next prime is 42590341. The reversal of 42590290 is 9209524.

It can be written as a sum of positive squares in 4 ways, for example, as 20151121 + 22439169 = 4489^2 + 4737^2 .

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, 6034 + ... + 11026.

Almost surely, 2^42590290 is an apocalyptic number.

42590290 is a deficient number, since it is larger than the sum of its proper divisors (34177478).

42590290 is a wasteful number, since it uses less digits than its factorization.

42590290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5853.

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 42590290 is about 6526.1236580377. The cubic root of 42590290 is about 349.2235577207.

The spelling of 42590290 in words is "forty-two million, five hundred ninety thousand, two hundred ninety".