609238590 has 16 divisors (see below), whose sum is σ = 1462172688. Its totient is φ = 162463616.

The previous prime is 609238573. The next prime is 609238607. The reversal of 609238590 is 95832906.

It is an interprime number because it is at equal distance from previous prime (609238573) and next prime (609238607).

It is a Curzon number.

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, 10153947 + ... + 10154006.

It is an arithmetic number, because the mean of its divisors is an integer number (91385793).

Almost surely, 2^609238590 is an apocalyptic number.

609238590 is an abundant number, since it is smaller than the sum of its proper divisors (852934098).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

609238590 is a wasteful number, since it uses less digits than its factorization.

609238590 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20307963.

The product of its (nonzero) digits is 116640, while the sum is 42.

The square root of 609238590 is about 24682.7589624823. The cubic root of 609238590 is about 847.7395951570.

The spelling of 609238590 in words is "six hundred nine million, two hundred thirty-eight thousand, five hundred ninety".