88889040 has 60 divisors (see below), whose sum is σ = 298521444. Its totient is φ = 23703552.

The previous prime is 88889033. The next prime is 88889069. The reversal of 88889040 is 4098888.

It can be written as a sum of positive squares in 2 ways, for example, as 67765824 + 21123216 = 8232^2 + 4596^2 .

It is a tau number, because it is divible by the number of its divisors (60).

It is a super-2 number, since 2×88889040² = 15802522864243200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 61009 + ... + 62448.

Almost surely, 2^88889040 is an apocalyptic number.

88889040 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

88889040 is an abundant number, since it is smaller than the sum of its proper divisors (209632404).

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

88889040 is a wasteful number, since it uses less digits than its factorization.

88889040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123476 (or 123467 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 45.

The square root of 88889040 is about 9428.0984296941. The cubic root of 88889040 is about 446.2888862849.

The spelling of 88889040 in words is "eighty-eight million, eight hundred eighty-nine thousand, forty".