745318992 has 80 divisors (see below), whose sum is σ = 2151737280. Its totient is φ = 220339200.

The previous prime is 745318991. The next prime is 745319011. The reversal of 745318992 is 299813547.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (745318991) 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 15 ways as a sum of consecutive naturals, for example, 4434 + ... + 38862.

It is an arithmetic number, because the mean of its divisors is an integer number (26896716).

Almost surely, 2^745318992 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 745318992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1075868640).

745318992 is an abundant number, since it is smaller than the sum of its proper divisors (1406418288).

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

745318992 is a wasteful number, since it uses less digits than its factorization.

745318992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34492 (or 34486 counting only the distinct ones).

The product of its digits is 544320, while the sum is 48.

The square root of 745318992 is about 27300.5309838472. The cubic root of 745318992 is about 906.6661377832. Note that the first 3 decimals are identical.

The spelling of 745318992 in words is "seven hundred forty-five million, three hundred eighteen thousand, nine hundred ninety-two".