45273272 has 32 divisors (see below), whose sum is σ = 92880000. Its totient is φ = 20517600.

The previous prime is 45273251. The next prime is 45273287. The reversal of 45273272 is 27237254.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43397 + ... + 44427.

It is an arithmetic number, because the mean of its divisors is an integer number (2902500).

Almost surely, 2^45273272 is an apocalyptic number.

It is an amenable number.

45273272 is an abundant number, since it is smaller than the sum of its proper divisors (47606728).

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

45273272 is a wasteful number, since it uses less digits than its factorization.

45273272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1547 (or 1543 counting only the distinct ones).

The product of its digits is 23520, while the sum is 32.

The square root of 45273272 is about 6728.5415953236. The cubic root of 45273272 is about 356.4078774129.

The spelling of 45273272 in words is "forty-five million, two hundred seventy-three thousand, two hundred seventy-two".