45245472 has 48 divisors (see below), whose sum is σ = 119478240. Its totient is φ = 14991872.

The previous prime is 45245471. The next prime is 45245491. The reversal of 45245472 is 27454254.

It is a tau number, because it is divible by the number of its divisors (48).

It is not an unprimeable number, because it can be changed into a prime (45245471) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15868 + ... + 18500.

It is an arithmetic number, because the mean of its divisors is an integer number (2489130).

Almost surely, 2^45245472 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 45245472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59739120).

45245472 is an abundant number, since it is smaller than the sum of its proper divisors (74232768).

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

45245472 is a wasteful number, since it uses less digits than its factorization.

45245472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2825 (or 2817 counting only the distinct ones).

The product of its digits is 44800, while the sum is 33.

The square root of 45245472 is about 6726.4754515273. The cubic root of 45245472 is about 356.3349118619.

The spelling of 45245472 in words is "forty-five million, two hundred forty-five thousand, four hundred seventy-two".