745023744 has 360 divisors, whose sum is σ = 2453454080. Its totient is φ = 223948800.

The previous prime is 745023733. The next prime is 745023757. The reversal of 745023744 is 447320547.

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

It is a junction number, because it is equal to n+sod(n) for n = 745023699 and 745023708.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 12213474 + ... + 12213534.

Almost surely, 2^745023744 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 745023744, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1226727040).

745023744 is an abundant number, since it is smaller than the sum of its proper divisors (1708430336).

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

745023744 is a wasteful number, since it uses less digits than its factorization.

745023744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139 (or 116 counting only the distinct ones).

The product of its (nonzero) digits is 94080, while the sum is 36.

The square root of 745023744 is about 27295.1230808729. The cubic root of 745023744 is about 906.5464008107.

The spelling of 745023744 in words is "seven hundred forty-five million, twenty-three thousand, seven hundred forty-four".