45438744 has 32 divisors (see below), whose sum is σ = 122335920. Its totient is φ = 13981056.

The previous prime is 45438719. The next prime is 45438751. The reversal of 45438744 is 44783454.

45438744 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is an unprimeable number.

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, 72507 + ... + 73130.

Almost surely, 2^45438744 is an apocalyptic number.

It is an amenable number.

45438744 is an abundant number, since it is smaller than the sum of its proper divisors (76897176).

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

45438744 is a wasteful number, since it uses less digits than its factorization.

45438744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145659 (or 145655 counting only the distinct ones).

The product of its digits is 215040, while the sum is 39.

The square root of 45438744 is about 6740.8266555371. The cubic root of 45438744 is about 356.8415683168.

The spelling of 45438744 in words is "forty-five million, four hundred thirty-eight thousand, seven hundred forty-four".