90450602 has 32 divisors (see below), whose sum is σ = 156496320. Its totient is φ = 38776320.

The previous prime is 90450593. The next prime is 90450641. The reversal of 90450602 is 20605409.

It is a super-2 number, since 2×90450602² = 16362622804324808, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 147248 + ... + 147860.

It is an arithmetic number, because the mean of its divisors is an integer number (4890510).

Almost surely, 2^90450602 is an apocalyptic number.

90450602 is a deficient number, since it is larger than the sum of its proper divisors (66045718).

90450602 is a wasteful number, since it uses less digits than its factorization.

90450602 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 998.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 90450602 is about 9510.5521395974. The cubic root of 90450602 is about 448.8871299268.

The spelling of 90450602 in words is "ninety million, four hundred fifty thousand, six hundred two".