745198784 has 56 divisors (see below), whose sum is σ = 1633728000. Its totient is φ = 334414080.

The previous prime is 745198763. The next prime is 745198807. The reversal of 745198784 is 487891547.

It is a happy number.

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, 48917 + ... + 62315.

Almost surely, 2^745198784 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 745198784, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (816864000).

745198784 is an abundant number, since it is smaller than the sum of its proper divisors (888529216).

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

745198784 is a wasteful number, since it uses less digits than its factorization.

745198784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13501 (or 13491 counting only the distinct ones).

The product of its digits is 2257920, while the sum is 53.

The square root of 745198784 is about 27298.3293261694. The cubic root of 745198784 is about 906.6173915935.

The spelling of 745198784 in words is "seven hundred forty-five million, one hundred ninety-eight thousand, seven hundred eighty-four".