426658990 has 16 divisors (see below), whose sum is σ = 768947760. Its totient is φ = 170449920.

The previous prime is 426658937. The next prime is 426659021. The reversal of 426658990 is 99856624.

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, 18195 + ... + 34414.

It is an arithmetic number, because the mean of its divisors is an integer number (48059235).

Almost surely, 2^426658990 is an apocalyptic number.

426658990 is a deficient number, since it is larger than the sum of its proper divisors (342288770).

426658990 is a wasteful number, since it uses less digits than its factorization.

426658990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53427.

The product of its (nonzero) digits is 933120, while the sum is 49.

The square root of 426658990 is about 20655.7253564236. The cubic root of 426658990 is about 752.8243080653.

The spelling of 426658990 in words is "four hundred twenty-six million, six hundred fifty-eight thousand, nine hundred ninety".