88420090 has 16 divisors (see below), whose sum is σ = 173625120. Its totient is φ = 32152720.

The previous prime is 88420069. The next prime is 88420097. The reversal of 88420090 is 9002488.

It is a super-2 number, since 2×88420090² = 15636224631216200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (88420097) 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, 401800 + ... + 402019.

It is an arithmetic number, because the mean of its divisors is an integer number (10851570).

Almost surely, 2^88420090 is an apocalyptic number.

88420090 is a deficient number, since it is larger than the sum of its proper divisors (85205030).

88420090 is a wasteful number, since it uses less digits than its factorization.

88420090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 803837.

The product of its (nonzero) digits is 4608, while the sum is 31.

The square root of 88420090 is about 9403.1957333664. The cubic root of 88420090 is about 445.5026764976.

The spelling of 88420090 in words is "eighty-eight million, four hundred twenty thousand, ninety".