88869840 has 80 divisors (see below), whose sum is σ = 290011200. Its totient is φ = 22450176.

The previous prime is 88869827. The next prime is 88869841. The reversal of 88869840 is 4896888.

It is a tau number, because it is divible by the number of its divisors (80).

It is a hoax number, since the sum of its digits (51) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (88869841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5185 + ... + 14304.

It is an arithmetic number, because the mean of its divisors is an integer number (3625140).

Almost surely, 2^88869840 is an apocalyptic number.

88869840 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

88869840 is an abundant number, since it is smaller than the sum of its proper divisors (201141360).

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

88869840 is a wasteful number, since it uses less digits than its factorization.

88869840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19524 (or 19518 counting only the distinct ones).

The product of its (nonzero) digits is 884736, while the sum is 51.

The square root of 88869840 is about 9427.0801418042. The cubic root of 88869840 is about 446.2567512258.

The spelling of 88869840 in words is "eighty-eight million, eight hundred sixty-nine thousand, eight hundred forty".