45240432 has 20 divisors (see below), whose sum is σ = 116871240. Its totient is φ = 15080128.

The previous prime is 45240431. The next prime is 45240449. The reversal of 45240432 is 23404254.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45240431) 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, 471207 + ... + 471302.

It is an arithmetic number, because the mean of its divisors is an integer number (5843562).

Almost surely, 2^45240432 is an apocalyptic number.

It is an amenable number.

45240432 is an abundant number, since it is smaller than the sum of its proper divisors (71630808).

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

45240432 is a wasteful number, since it uses less digits than its factorization.

45240432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 942520 (or 942514 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 24.

The square root of 45240432 is about 6726.1008020992. The cubic root of 45240432 is about 356.3216803748.

Adding to 45240432 its reverse (23404254), we get a palindrome (68644686).

The spelling of 45240432 in words is "forty-five million, two hundred forty thousand, four hundred thirty-two".