45109722 has 16 divisors (see below), whose sum is σ = 103108032. Its totient is φ = 12888480.

The previous prime is 45109699. The next prime is 45109723. The reversal of 45109722 is 22790154.

It is a self number, because there is not a number n which added to its sum of digits gives 45109722.

It is not an unprimeable number, because it can be changed into a prime (45109723) 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, 536979 + ... + 537062.

It is an arithmetic number, because the mean of its divisors is an integer number (6444252).

Almost surely, 2^45109722 is an apocalyptic number.

45109722 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

45109722 is an abundant number, since it is smaller than the sum of its proper divisors (57998310).

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

45109722 is a wasteful number, since it uses less digits than its factorization.

45109722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1074053.

The product of its (nonzero) digits is 5040, while the sum is 30.

The square root of 45109722 is about 6716.3771484335. The cubic root of 45109722 is about 355.9781842879.

Adding to 45109722 its reverse (22790154), we get a palindrome (67899876).

The spelling of 45109722 in words is "forty-five million, one hundred nine thousand, seven hundred twenty-two".