44991120 has 40 divisors (see below), whose sum is σ = 139473216. Its totient is φ = 11997568.

The previous prime is 44991109. The next prime is 44991127. The reversal of 44991120 is 2119944.

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

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (44991127) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 93492 + ... + 93971.

Almost surely, 2^44991120 is an apocalyptic number.

44991120 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

44991120 is an abundant number, since it is smaller than the sum of its proper divisors (94482096).

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

44991120 is a wasteful number, since it uses less digits than its factorization.

44991120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187479 (or 187473 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 30.

The square root of 44991120 is about 6707.5420237223. The cubic root of 44991120 is about 355.6659324561.

The spelling of 44991120 in words is "forty-four million, nine hundred ninety-one thousand, one hundred twenty".