745306720 has 48 divisors (see below), whose sum is σ = 1837352160. Its totient is φ = 285159424.

The previous prime is 745306691. The next prime is 745306721. The reversal of 745306720 is 27603547.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (745306721) 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, 97585 + ... + 104944.

It is an arithmetic number, because the mean of its divisors is an integer number (38278170).

Almost surely, 2^745306720 is an apocalyptic number.

It is an amenable number.

745306720 is an abundant number, since it is smaller than the sum of its proper divisors (1092045440).

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

745306720 is a wasteful number, since it uses less digits than its factorization.

745306720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202567 (or 202559 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 34.

The square root of 745306720 is about 27300.3062253888. The cubic root of 745306720 is about 906.6611615390.

The spelling of 745306720 in words is "seven hundred forty-five million, three hundred six thousand, seven hundred twenty".