44481609 has 32 divisors (see below), whose sum is σ = 69672960. Its totient is φ = 27990864.

The previous prime is 44481607. The next prime is 44481617. The reversal of 44481609 is 90618444.

It is a happy number.

44481609 is a `hidden beast` number, since 4 + 4 + 48 + 1 + 609 = 666.

44481609 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 44481609 - 2¹ = 44481607 is a prime.

It is a super-2 number, since 2×44481609² = 3957227078457762, which contains 22 as substring.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (44481607) 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 31 ways as a sum of consecutive naturals, for example, 51112 + ... + 51974.

It is an arithmetic number, because the mean of its divisors is an integer number (2177280).

Almost surely, 2^44481609 is an apocalyptic number.

It is an amenable number.

44481609 is a deficient number, since it is larger than the sum of its proper divisors (25191351).

44481609 is a wasteful number, since it uses less digits than its factorization.

44481609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 978 (or 972 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The square root of 44481609 is about 6669.4534258813. The cubic root of 44481609 is about 354.3182286369.

The spelling of 44481609 in words is "forty-four million, four hundred eighty-one thousand, six hundred nine".