90624418 has 16 divisors (see below), whose sum is σ = 137808216. Its totient is φ = 44692480.

The previous prime is 90624409. The next prime is 90624419. The reversal of 90624418 is 81442609.

It can be written as a sum of positive squares in 4 ways, for example, as 48205249 + 42419169 = 6943^2 + 6513^2 .

It is not an unprimeable number, because it can be changed into a prime (90624419) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 51798 + ... + 53518.

Almost surely, 2^90624418 is an apocalyptic number.

90624418 is a deficient number, since it is larger than the sum of its proper divisors (47183798).

90624418 is a wasteful number, since it uses less digits than its factorization.

90624418 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2069.

The product of its (nonzero) digits is 13824, while the sum is 34.

The square root of 90624418 is about 9519.6858141432. The cubic root of 90624418 is about 449.1744832385.

The spelling of 90624418 in words is "ninety million, six hundred twenty-four thousand, four hundred eighteen".