88145220 has 24 divisors (see below), whose sum is σ = 246806784. Its totient is φ = 23505376.

The previous prime is 88145219. The next prime is 88145243. The reversal of 88145220 is 2254188.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 734484 + ... + 734603.

It is an arithmetic number, because the mean of its divisors is an integer number (10283616).

Almost surely, 2^88145220 is an apocalyptic number.

It is an amenable number.

88145220 is an abundant number, since it is smaller than the sum of its proper divisors (158661564).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

88145220 is a wasteful number, since it uses less digits than its factorization.

88145220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1469099 (or 1469097 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 30.

The square root of 88145220 is about 9388.5685809925. The cubic root of 88145220 is about 445.0405551559.

The spelling of 88145220 in words is "eighty-eight million, one hundred forty-five thousand, two hundred twenty".