45279744 has 80 divisors (see below), whose sum is σ = 123742080. Its totient is φ = 14704640.

The previous prime is 45279713. The next prime is 45279761. The reversal of 45279744 is 44797254.

It is a junction number, because it is equal to n+sod(n) for n = 45279696 and 45279705.

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, 62617 + ... + 63335.

It is an arithmetic number, because the mean of its divisors is an integer number (1546776).

Almost surely, 2^45279744 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 45279744, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61871040).

45279744 is an abundant number, since it is smaller than the sum of its proper divisors (78462336).

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

45279744 is an equidigital number, since it uses as much as digits as its factorization.

45279744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 781 (or 765 counting only the distinct ones).

The product of its digits is 282240, while the sum is 42.

The square root of 45279744 is about 6729.0225144519. The cubic root of 45279744 is about 356.4248599265.

The spelling of 45279744 in words is "forty-five million, two hundred seventy-nine thousand, seven hundred forty-four".