745185684 has 24 divisors (see below), whose sum is σ = 1841047488. Its totient is φ = 233783680.

The previous prime is 745185673. The next prime is 745185689. The reversal of 745185684 is 486581547.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (745185689) 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 7 ways as a sum of consecutive naturals, for example, 1826232 + ... + 1826639.

It is an arithmetic number, because the mean of its divisors is an integer number (76710312).

Almost surely, 2^745185684 is an apocalyptic number.

It is an amenable number.

745185684 is an abundant number, since it is smaller than the sum of its proper divisors (1095861804).

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

745185684 is a wasteful number, since it uses less digits than its factorization.

745185684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3652895 (or 3652893 counting only the distinct ones).

The product of its digits is 1075200, while the sum is 48.

The square root of 745185684 is about 27298.0893836913. The cubic root of 745185684 is about 906.6120790256.

The spelling of 745185684 in words is "seven hundred forty-five million, one hundred eighty-five thousand, six hundred eighty-four".