88751440 has 20 divisors (see below), whose sum is σ = 206347284. Its totient is φ = 35500544.

The previous prime is 88751417. The next prime is 88751447. The reversal of 88751440 is 4415788.

It can be written as a sum of positive squares in 2 ways, for example, as 23270976 + 65480464 = 4824^2 + 8092^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a self number, because there is not a number n which added to its sum of digits gives 88751440.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (88751447) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 554617 + ... + 554776.

Almost surely, 2^88751440 is an apocalyptic number.

88751440 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

88751440 is an abundant number, since it is smaller than the sum of its proper divisors (117595844).

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

88751440 is a wasteful number, since it uses less digits than its factorization.

88751440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1109406 (or 1109400 counting only the distinct ones).

The product of its (nonzero) digits is 35840, while the sum is 37.

The square root of 88751440 is about 9420.7982676629. The cubic root of 88751440 is about 446.0584826820.

The spelling of 88751440 in words is "eighty-eight million, seven hundred fifty-one thousand, four hundred forty".