44747540 has 24 divisors (see below), whose sum is σ = 95260200. Its totient is φ = 17653248.

The previous prime is 44747533. The next prime is 44747543. The reversal of 44747540 is 4574744.

It can be written as a sum of positive squares in 4 ways, for example, as 44944 + 44702596 = 212^2 + 6686^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 44747540.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44747543) 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, 13865 + ... + 16784.

It is an arithmetic number, because the mean of its divisors is an integer number (3969175).

Almost surely, 2^44747540 is an apocalyptic number.

It is an amenable number.

44747540 is an abundant number, since it is smaller than the sum of its proper divisors (50512660).

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

44747540 is a wasteful number, since it uses less digits than its factorization.

44747540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30731 (or 30729 counting only the distinct ones).

The product of its (nonzero) digits is 62720, while the sum is 35.

The square root of 44747540 is about 6689.3602085700. The cubic root of 44747540 is about 355.0229172536.

The spelling of 44747540 in words is "forty-four million, seven hundred forty-seven thousand, five hundred forty".