44670640 has 40 divisors (see below), whose sum is σ = 118697760. Its totient is φ = 15315456.

The previous prime is 44670617. The next prime is 44670641. The reversal of 44670640 is 4607644.

44670640 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (44670641) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 39325 + ... + 40444.

It is an arithmetic number, because the mean of its divisors is an integer number (2967444).

Almost surely, 2^44670640 is an apocalyptic number.

44670640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

44670640 is an abundant number, since it is smaller than the sum of its proper divisors (74027120).

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

44670640 is a wasteful number, since it uses less digits than its factorization.

44670640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79789 (or 79783 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 31.

The square root of 44670640 is about 6683.6098030929. The cubic root of 44670640 is about 354.8194281036.

The spelling of 44670640 in words is "forty-four million, six hundred seventy thousand, six hundred forty".