45156224 has 32 divisors (see below), whose sum is σ = 90680040. Its totient is φ = 22397440.

The previous prime is 45156203. The next prime is 45156227. The reversal of 45156224 is 42265154.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45156227) 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, 15422 + ... + 18114.

Almost surely, 2^45156224 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 45156224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45340020).

45156224 is an abundant number, since it is smaller than the sum of its proper divisors (45523816).

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

45156224 is a wasteful number, since it uses less digits than its factorization.

45156224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2838 (or 2826 counting only the distinct ones).

The product of its digits is 9600, while the sum is 29.

The square root of 45156224 is about 6719.8380932877. The cubic root of 45156224 is about 356.1004640082.

The spelling of 45156224 in words is "forty-five million, one hundred fifty-six thousand, two hundred twenty-four".