745340928 has 136 divisors (see below), whose sum is σ = 2113913088. Its totient is φ = 232783872.

The previous prime is 745340879. The next prime is 745340933. The reversal of 745340928 is 829043547.

It is a tau number, because it is divible by the number of its divisors (136).

It is a nialpdrome in base 8.

It is a self number, because there is not a number n which added to its sum of digits gives 745340928.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3342225 + ... + 3342447.

Almost surely, 2^745340928 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 745340928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1056956544).

745340928 is an abundant number, since it is smaller than the sum of its proper divisors (1368572160).

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

745340928 is an equidigital number, since it uses as much as digits as its factorization.

745340928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 275 (or 245 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 42.

The square root of 745340928 is about 27300.9327313189. The cubic root of 745340928 is about 906.6750326025.

The spelling of 745340928 in words is "seven hundred forty-five million, three hundred forty thousand, nine hundred twenty-eight".