45624140 has 12 divisors (see below), whose sum is σ = 95810736. Its totient is φ = 18249648.

The previous prime is 45624101. The next prime is 45624143. The reversal of 45624140 is 4142654.

It is not an unprimeable number, because it can be changed into a prime (45624143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1140584 + ... + 1140623.

It is an arithmetic number, because the mean of its divisors is an integer number (7984228).

Almost surely, 2^45624140 is an apocalyptic number.

It is an amenable number.

45624140 is an abundant number, since it is smaller than the sum of its proper divisors (50186596).

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

45624140 is a wasteful number, since it uses less digits than its factorization.

45624140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2281216 (or 2281214 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 26.

The square root of 45624140 is about 6754.5643826971. The cubic root of 45624140 is about 357.3262297943.

Adding to 45624140 its reverse (4142654), we get a palindrome (49766794).

The spelling of 45624140 in words is "forty-five million, six hundred twenty-four thousand, one hundred forty".