745273920 has 56 divisors (see below), whose sum is σ = 2366247744. Its totient is φ = 198739456.

The previous prime is 745273909. The next prime is 745273927. The reversal of 745273920 is 29372547.

745273920 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (745273927) 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, 387204 + ... + 389123.

It is an arithmetic number, because the mean of its divisors is an integer number (42254424).

Almost surely, 2^745273920 is an apocalyptic number.

It is an amenable number.

745273920 is an abundant number, since it is smaller than the sum of its proper divisors (1620973824).

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

745273920 is a wasteful number, since it uses less digits than its factorization.

745273920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 776347 (or 776337 counting only the distinct ones).

The product of its (nonzero) digits is 105840, while the sum is 39.

The square root of 745273920 is about 27299.7054929170. The cubic root of 745273920 is about 906.6478610094.

The spelling of 745273920 in words is "seven hundred forty-five million, two hundred seventy-three thousand, nine hundred twenty".