45537940 has 24 divisors (see below), whose sum is σ = 109291392. Its totient is φ = 15612960.

The previous prime is 45537937. The next prime is 45537949. The reversal of 45537940 is 4973554.

It is a self number, because there is not a number n which added to its sum of digits gives 45537940.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45537949) 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, 162496 + ... + 162775.

It is an arithmetic number, because the mean of its divisors is an integer number (4553808).

Almost surely, 2^45537940 is an apocalyptic number.

It is an amenable number.

45537940 is an abundant number, since it is smaller than the sum of its proper divisors (63753452).

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

45537940 is a wasteful number, since it uses less digits than its factorization.

45537940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 325287 (or 325285 counting only the distinct ones).

The product of its (nonzero) digits is 75600, while the sum is 37.

The square root of 45537940 is about 6748.1804955114. The cubic root of 45537940 is about 357.1010497348.

The spelling of 45537940 in words is "forty-five million, five hundred thirty-seven thousand, nine hundred forty".