90057426 has 16 divisors (see below), whose sum is σ = 180818784. Its totient is φ = 29901824.

The previous prime is 90057413. The next prime is 90057427. The reversal of 90057426 is 62475009.

It is a super-2 number, since 2×90057426² = 16220679955490952, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (90057427) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27660 + ... + 30743.

It is an arithmetic number, because the mean of its divisors is an integer number (11301174).

Almost surely, 2^90057426 is an apocalyptic number.

90057426 is an abundant number, since it is smaller than the sum of its proper divisors (90761358).

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

90057426 is a wasteful number, since it uses less digits than its factorization.

90057426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58665.

The product of its (nonzero) digits is 15120, while the sum is 33.

The square root of 90057426 is about 9489.8591138120. The cubic root of 90057426 is about 448.2357688902.

The spelling of 90057426 in words is "ninety million, fifty-seven thousand, four hundred twenty-six".