88400445 has 64 divisors (see below), whose sum is σ = 172769280. Its totient is φ = 37698048.

The previous prime is 88400423. The next prime is 88400453. The reversal of 88400445 is 54400488.

It is not a de Polignac number, because 88400445 - 2⁹ = 88399933 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 145332 + ... + 145938.

It is an arithmetic number, because the mean of its divisors is an integer number (2699520).

Almost surely, 2^88400445 is an apocalyptic number.

It is an amenable number.

88400445 is a deficient number, since it is larger than the sum of its proper divisors (84368835).

88400445 is a wasteful number, since it uses less digits than its factorization.

88400445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 714.

The product of its (nonzero) digits is 20480, while the sum is 33.

The square root of 88400445 is about 9402.1510836617. The cubic root of 88400445 is about 445.4696804205.

The spelling of 88400445 in words is "eighty-eight million, four hundred thousand, four hundred forty-five".