45221932 has 48 divisors (see below), whose sum is σ = 95219712. Its totient is φ = 18383040.

The previous prime is 45221867. The next prime is 45221971. The reversal of 45221932 is 23912254.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a self number, because there is not a number n which added to its sum of digits gives 45221932.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45513 + ... + 46495.

It is an arithmetic number, because the mean of its divisors is an integer number (1983744).

Almost surely, 2^45221932 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 45221932, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47609856).

45221932 is an abundant number, since it is smaller than the sum of its proper divisors (49997780).

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

45221932 is a wasteful number, since it uses less digits than its factorization.

45221932 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1078 (or 1076 counting only the distinct ones).

The product of its digits is 4320, while the sum is 28.

The square root of 45221932 is about 6724.7254219039. The cubic root of 45221932 is about 356.2731039905.

The spelling of 45221932 in words is "forty-five million, two hundred twenty-one thousand, nine hundred thirty-two".