45412272 has 80 divisors (see below), whose sum is σ = 134594560. Its totient is φ = 14644800.

The previous prime is 45412271. The next prime is 45412277. The reversal of 45412272 is 27221454.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (45412271) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11697 + ... + 15087.

It is an arithmetic number, because the mean of its divisors is an integer number (1682432).

Almost surely, 2^45412272 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 45412272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67297280).

45412272 is an abundant number, since it is smaller than the sum of its proper divisors (89182288).

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

45412272 is a wasteful number, since it uses less digits than its factorization.

45412272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3439 (or 3427 counting only the distinct ones).

The product of its digits is 4480, while the sum is 27.

The square root of 45412272 is about 6738.8628120774. The cubic root of 45412272 is about 356.7722578255.

The spelling of 45412272 in words is "forty-five million, four hundred twelve thousand, two hundred seventy-two".