88400444 has 24 divisors (see below), whose sum is σ = 169365168. Its totient is φ = 40039040.

The previous prime is 88400423. The next prime is 88400453. The reversal of 88400444 is 44400488.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 88400444.

It is a congruent number.

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, 9464 + ... + 16320.

It is an arithmetic number, because the mean of its divisors is an integer number (7056882).

Almost surely, 2^88400444 is an apocalyptic number.

It is an amenable number.

88400444 is a deficient number, since it is larger than the sum of its proper divisors (80964724).

88400444 is a wasteful number, since it uses less digits than its factorization.

88400444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7165 (or 7163 counting only the distinct ones).

The product of its (nonzero) digits is 16384, while the sum is 32.

The square root of 88400444 is about 9402.1510304823. The cubic root of 88400444 is about 445.4696787407.

The spelling of 88400444 in words is "eighty-eight million, four hundred thousand, four hundred forty-four".