745662720 has 288 divisors, whose sum is σ = 2637250560. Its totient is φ = 178053120.

The previous prime is 745662683. The next prime is 745662763. The reversal of 745662720 is 27266547.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5364411 + ... + 5364549.

It is an arithmetic number, because the mean of its divisors is an integer number (9157120).

Almost surely, 2^745662720 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 745662720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1318625280).

745662720 is an abundant number, since it is smaller than the sum of its proper divisors (1891587840).

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

745662720 is a wasteful number, since it uses less digits than its factorization.

745662720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 301 (or 287 counting only the distinct ones).

The product of its (nonzero) digits is 141120, while the sum is 39.

The square root of 745662720 is about 27306.8255203713. The cubic root of 745662720 is about 906.8054958501.

The spelling of 745662720 in words is "seven hundred forty-five million, six hundred sixty-two thousand, seven hundred twenty".