745394328 has 48 divisors (see below), whose sum is σ = 2307174480. Its totient is φ = 212969664.

The previous prime is 745394317. The next prime is 745394333. The reversal of 745394328 is 823493547.

745394328 is a `hidden beast` number, since 74 + 539 + 43 + 2 + 8 = 666.

It is a super-2 number, since 2×745394328² = 1111225408429143168, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 738975 + ... + 739982.

It is an arithmetic number, because the mean of its divisors is an integer number (48066135).

Almost surely, 2^745394328 is an apocalyptic number.

It is an amenable number.

745394328 is an abundant number, since it is smaller than the sum of its proper divisors (1561780152).

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

745394328 is a wasteful number, since it uses less digits than its factorization.

745394328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1478976 (or 1478969 counting only the distinct ones).

The product of its digits is 725760, while the sum is 45.

The square root of 745394328 is about 27301.9107023666. The cubic root of 745394328 is about 906.6966850163.

The spelling of 745394328 in words is "seven hundred forty-five million, three hundred ninety-four thousand, three hundred twenty-eight".