45388740 has 48 divisors (see below), whose sum is σ = 127507968. Its totient is φ = 12063744.

The previous prime is 45388709. The next prime is 45388747. The reversal of 45388740 is 4788354.

It is not an unprimeable number, because it can be changed into a prime (45388747) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20109 + ... + 22251.

It is an arithmetic number, because the mean of its divisors is an integer number (2656416).

Almost surely, 2^45388740 is an apocalyptic number.

It is an amenable number.

45388740 is an abundant number, since it is smaller than the sum of its proper divisors (82119228).

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

45388740 is a wasteful number, since it uses less digits than its factorization.

45388740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2508 (or 2506 counting only the distinct ones).

The product of its (nonzero) digits is 107520, while the sum is 39.

The square root of 45388740 is about 6737.1165939146. The cubic root of 45388740 is about 356.7106223910.

The spelling of 45388740 in words is "forty-five million, three hundred eighty-eight thousand, seven hundred forty".