45169644 has 36 divisors (see below), whose sum is σ = 114131976. Its totient is φ = 13897728.

The previous prime is 45169643. The next prime is 45169693. The reversal of 45169644 is 44696154.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (45169643) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9109 + ... + 13164.

Almost surely, 2^45169644 is an apocalyptic number.

It is an amenable number.

45169644 is an abundant number, since it is smaller than the sum of its proper divisors (68962332).

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

45169644 is a wasteful number, since it uses less digits than its factorization.

45169644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22306 (or 22291 counting only the distinct ones).

The product of its digits is 103680, while the sum is 39.

The square root of 45169644 is about 6720.8365550726. The cubic root of 45169644 is about 356.1357370704.

The spelling of 45169644 in words is "forty-five million, one hundred sixty-nine thousand, six hundred forty-four".