745734312 has 48 divisors (see below), whose sum is σ = 2022052500. Its totient is φ = 248288256.

The previous prime is 745734307. The next prime is 745734323. The reversal of 745734312 is 213437547.

745734312 is a `hidden beast` number, since 74 + 573 + 4 + 3 + 12 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 619711236 + 126023076 = 24894^2 + 11226^2 .

It is a super-2 number, since 2×745734312² = 1112239328188226688, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

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 11 ways as a sum of consecutive naturals, for example, 61314 + ... + 72462.

Almost surely, 2^745734312 is an apocalyptic number.

745734312 is a gapful number since it is divisible by the number (72) formed by its first and last digit.

It is an amenable number.

745734312 is an abundant number, since it is smaller than the sum of its proper divisors (1276318188).

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

745734312 is a wasteful number, since it uses less digits than its factorization.

745734312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12090 (or 12083 counting only the distinct ones).

The product of its digits is 70560, while the sum is 36.

The square root of 745734312 is about 27308.1363699539. The cubic root of 745734312 is about 906.8345160938.

The spelling of 745734312 in words is "seven hundred forty-five million, seven hundred thirty-four thousand, three hundred twelve".