745780238 has 16 divisors (see below), whose sum is σ = 1284218880. Its totient is φ = 318185496.

The previous prime is 745780219. The next prime is 745780247. The reversal of 745780238 is 832087547.

It is a happy number.

745780238 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 116318 + ... + 122561.

It is an arithmetic number, because the mean of its divisors is an integer number (80263680).

Almost surely, 2^745780238 is an apocalyptic number.

745780238 is a deficient number, since it is larger than the sum of its proper divisors (538438642).

745780238 is a wasteful number, since it uses less digits than its factorization.

745780238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239111.

The product of its (nonzero) digits is 376320, while the sum is 44.

The square root of 745780238 is about 27308.9772419254. The cubic root of 745780238 is about 906.8531314936.

The spelling of 745780238 in words is "seven hundred forty-five million, seven hundred eighty thousand, two hundred thirty-eight".