42500990 has 16 divisors (see below), whose sum is σ = 87430752. Its totient is φ = 14571744.

The previous prime is 42500989. The next prime is 42501001. The reversal of 42500990 is 9900524.

42500990 = T₂₃₇₃ + T₂₃₇₄ + ... + T₂₃₈₇.

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, 303509 + ... + 303648.

It is an arithmetic number, because the mean of its divisors is an integer number (5464422).

Almost surely, 2^42500990 is an apocalyptic number.

42500990 is an abundant number, since it is smaller than the sum of its proper divisors (44929762).

42500990 is a wasteful number, since it uses less digits than its factorization.

42500990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 607171.

The product of its (nonzero) digits is 3240, while the sum is 29.

The square root of 42500990 is about 6519.2783342944. The cubic root of 42500990 is about 348.9793120251.

The spelling of 42500990 in words is "forty-two million, five hundred thousand, nine hundred ninety".