90426568 has 8 divisors (see below), whose sum is σ = 169549830. Its totient is φ = 45213280.

The previous prime is 90426559. The next prime is 90426571. The reversal of 90426568 is 86562409.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 86899684 + 3526884 = 9322^2 + 1878^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 90426568.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5651653 + ... + 5651668.

Almost surely, 2^90426568 is an apocalyptic number.

It is an amenable number.

90426568 is a deficient number, since it is larger than the sum of its proper divisors (79123262).

90426568 is a wasteful number, since it uses less digits than its factorization.

90426568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11303327 (or 11303323 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 40.

The square root of 90426568 is about 9509.2885117657. The cubic root of 90426568 is about 448.8473678587.

It can be divided in two parts, 904 and 26568, that added together give a palindrome (27472).

The spelling of 90426568 in words is "ninety million, four hundred twenty-six thousand, five hundred sixty-eight".