745374258 has 64 divisors (see below), whose sum is σ = 1695168000. Its totient is φ = 242696592.

The previous prime is 745374257. The next prime is 745374337. The reversal of 745374258 is 852473547.

745374258 is a `hidden beast` number, since 74 + 537 + 42 + 5 + 8 = 666.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (745374251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 569641 + ... + 570947.

It is an arithmetic number, because the mean of its divisors is an integer number (26487000).

Almost surely, 2^745374258 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 745374258, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (847584000).

745374258 is an abundant number, since it is smaller than the sum of its proper divisors (949793742).

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

745374258 is a wasteful number, since it uses less digits than its factorization.

745374258 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1556 (or 1550 counting only the distinct ones).

The product of its digits is 940800, while the sum is 45.

The square root of 745374258 is about 27301.5431431998. The cubic root of 745374258 is about 906.6885472360.

The spelling of 745374258 in words is "seven hundred forty-five million, three hundred seventy-four thousand, two hundred fifty-eight".