44481640 has 32 divisors (see below), whose sum is σ = 114382080. Its totient is φ = 15250752.

The previous prime is 44481637. The next prime is 44481643. The reversal of 44481640 is 4618444.

44481640 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (44481637) and next prime (44481643).

It is not an unprimeable number, because it can be changed into a prime (44481643) 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, 79152 + ... + 79711.

It is an arithmetic number, because the mean of its divisors is an integer number (3574440).

Almost surely, 2^44481640 is an apocalyptic number.

44481640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

44481640 is an abundant number, since it is smaller than the sum of its proper divisors (69900440).

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

44481640 is a wasteful number, since it uses less digits than its factorization.

44481640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158881 (or 158877 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 31.

The square root of 44481640 is about 6669.4557499094. The cubic root of 44481640 is about 354.3183109471.

The spelling of 44481640 in words is "forty-four million, four hundred eighty-one thousand, six hundred forty".