90587402 has 16 divisors (see below), whose sum is σ = 143294400. Its totient is φ = 42831360.

The previous prime is 90587353. The next prime is 90587447. The reversal of 90587402 is 20478509.

It is a happy number.

It is a super-2 number, since 2×90587402² = 16412154802219208, which contains 22 as substring.

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, 22499 + ... + 26217.

It is an arithmetic number, because the mean of its divisors is an integer number (8955900).

Almost surely, 2^90587402 is an apocalyptic number.

90587402 is a deficient number, since it is larger than the sum of its proper divisors (52706998).

90587402 is a wasteful number, since it uses less digits than its factorization.

90587402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4381.

The product of its (nonzero) digits is 20160, while the sum is 35.

The square root of 90587402 is about 9517.7414337646. The cubic root of 90587402 is about 449.1133190501.

The spelling of 90587402 in words is "ninety million, five hundred eighty-seven thousand, four hundred two".