90042746 has 16 divisors (see below), whose sum is σ = 142055424. Its totient is φ = 42722064.

The previous prime is 90042739. The next prime is 90042751. The reversal of 90042746 is 64724009.

It is a super-2 number, since 2×90042746² = 16215392214441032, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1865 + ... + 13548.

It is an arithmetic number, because the mean of its divisors is an integer number (8878464).

Almost surely, 2^90042746 is an apocalyptic number.

90042746 is a deficient number, since it is larger than the sum of its proper divisors (52012678).

90042746 is a wasteful number, since it uses less digits than its factorization.

90042746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15565.

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 90042746 is about 9489.0856250747. The cubic root of 90042746 is about 448.2114123622.

The spelling of 90042746 in words is "ninety million, forty-two thousand, seven hundred forty-six".