44400642 has 32 divisors (see below), whose sum is σ = 104328000. Its totient is φ = 12419520.

The previous prime is 44400641. The next prime is 44400647. The reversal of 44400642 is 24600444.

It is not an unprimeable number, because it can be changed into a prime (44400641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25017 + ... + 26732.

It is an arithmetic number, because the mean of its divisors is an integer number (3260250).

Almost surely, 2^44400642 is an apocalyptic number.

44400642 is an abundant number, since it is smaller than the sum of its proper divisors (59927358).

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

44400642 is a wasteful number, since it uses less digits than its factorization.

44400642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51778.

The product of its (nonzero) digits is 3072, while the sum is 24.

The square root of 44400642 is about 6663.3806735020. The cubic root of 44400642 is about 354.1031172037.

The spelling of 44400642 in words is "forty-four million, four hundred thousand, six hundred forty-two".