745640368 has 40 divisors (see below), whose sum is σ = 1588469760. Its totient is φ = 336248640.

The previous prime is 745640359. The next prime is 745640437. The reversal of 745640368 is 863046547.

It is a Smith number, since the sum of its digits (43) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 5673 + ... + 39031.

It is an arithmetic number, because the mean of its divisors is an integer number (39711744).

Almost surely, 2^745640368 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 745640368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (794234880).

745640368 is an abundant number, since it is smaller than the sum of its proper divisors (842829392).

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

745640368 is a wasteful number, since it uses less digits than its factorization.

745640368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33505 (or 33499 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 43.

The square root of 745640368 is about 27306.4162423413. The cubic root of 745640368 is about 906.7964349533.

The spelling of 745640368 in words is "seven hundred forty-five million, six hundred forty thousand, three hundred sixty-eight".