818230738 has 12 divisors (see below), whose sum is σ = 1329020298. Its totient is φ = 377644800.

The previous prime is 818230711. The next prime is 818230739. The reversal of 818230738 is 837032818.

It can be written as a sum of positive squares in 3 ways, for example, as 451010169 + 367220569 = 21237^2 + 19163^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 818230738.

It is not an unprimeable number, because it can be changed into a prime (818230739) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1210063 + ... + 1210738.

Almost surely, 2^818230738 is an apocalyptic number.

818230738 is a deficient number, since it is larger than the sum of its proper divisors (510789560).

818230738 is a wasteful number, since it uses less digits than its factorization.

818230738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2420829 (or 2420816 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 40.

The square root of 818230738 is about 28604.7327902220. The cubic root of 818230738 is about 935.3165020376.

The spelling of 818230738 in words is "eight hundred eighteen million, two hundred thirty thousand, seven hundred thirty-eight".