88644920 has 160 divisors (see below), whose sum is σ = 254106720. Its totient is φ = 27659520.

The previous prime is 88644901. The next prime is 88644923. The reversal of 88644920 is 2944688.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (88644923) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1248485 + ... + 1248555.

It is an arithmetic number, because the mean of its divisors is an integer number (1588167).

Almost surely, 2^88644920 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 88644920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (127053360).

88644920 is an abundant number, since it is smaller than the sum of its proper divisors (165461800).

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

88644920 is a wasteful number, since it uses less digits than its factorization.

88644920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123 (or 98 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 41.

The square root of 88644920 is about 9415.1431215888. The cubic root of 88644920 is about 445.8799572362.

The spelling of 88644920 in words is "eighty-eight million, six hundred forty-four thousand, nine hundred twenty".