45315642 has 16 divisors (see below), whose sum is σ = 95962752. Its totient is φ = 14216640.

The previous prime is 45315637. The next prime is 45315643. The reversal of 45315642 is 24651354.

It is not an unprimeable number, because it can be changed into a prime (45315643) 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, 222034 + ... + 222237.

It is an arithmetic number, because the mean of its divisors is an integer number (5997672).

Almost surely, 2^45315642 is an apocalyptic number.

45315642 is an abundant number, since it is smaller than the sum of its proper divisors (50647110).

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

45315642 is a wasteful number, since it uses less digits than its factorization.

45315642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 444293.

The product of its digits is 14400, while the sum is 30.

The square root of 45315642 is about 6731.6893867736. The cubic root of 45315642 is about 356.5190268298.

Adding to 45315642 its reverse (24651354), we get a palindrome (69966996).

The spelling of 45315642 in words is "forty-five million, three hundred fifteen thousand, six hundred forty-two".