44618540 has 24 divisors (see below), whose sum is σ = 99211392. Its totient is φ = 16797440.

The previous prime is 44618531. The next prime is 44618543. The reversal of 44618540 is 4581644.

It is a super-2 number, since 2×44618540² = 3981628223463200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 44618497 and 44618506.

It is not an unprimeable number, because it can be changed into a prime (44618543) 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, 65276 + ... + 65955.

It is an arithmetic number, because the mean of its divisors is an integer number (4133808).

Almost surely, 2^44618540 is an apocalyptic number.

It is an amenable number.

44618540 is an abundant number, since it is smaller than the sum of its proper divisors (54592852).

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

44618540 is a wasteful number, since it uses less digits than its factorization.

44618540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131257 (or 131255 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 32.

The square root of 44618540 is about 6679.7110715958. The cubic root of 44618540 is about 354.6814307991.

The spelling of 44618540 in words is "forty-four million, six hundred eighteen thousand, five hundred forty".