45731448 has 96 divisors (see below), whose sum is σ = 146165760. Its totient is φ = 12640320.

The previous prime is 45731419. The next prime is 45731449. The reversal of 45731448 is 84413754.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45731449) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14161 + ... + 17087.

It is an arithmetic number, because the mean of its divisors is an integer number (1522560).

Almost surely, 2^45731448 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 45731448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (73082880).

45731448 is an abundant number, since it is smaller than the sum of its proper divisors (100434312).

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

45731448 is a wasteful number, since it uses less digits than its factorization.

45731448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2977 (or 2970 counting only the distinct ones).

The product of its digits is 53760, while the sum is 36.

The square root of 45731448 is about 6762.5030868755. The cubic root of 45731448 is about 357.6061542715.

The spelling of 45731448 in words is "forty-five million, seven hundred thirty-one thousand, four hundred forty-eight".