745158720 has 112 divisors (see below), whose sum is σ = 2490459840. Its totient is φ = 188246016.

The previous prime is 745158707. The next prime is 745158751. The reversal of 745158720 is 27851547.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2187 + ... + 38666.

Almost surely, 2^745158720 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 745158720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1245229920).

745158720 is an abundant number, since it is smaller than the sum of its proper divisors (1745301120).

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

745158720 is a wasteful number, since it uses less digits than its factorization.

745158720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40892 (or 40882 counting only the distinct ones).

The product of its (nonzero) digits is 78400, while the sum is 39.

The square root of 745158720 is about 27297.5954985050. The cubic root of 745158720 is about 906.6011438616.

The spelling of 745158720 in words is "seven hundred forty-five million, one hundred fifty-eight thousand, seven hundred twenty".