814325690 has 16 divisors (see below), whose sum is σ = 1466111880. Its totient is φ = 325657920.

The previous prime is 814325689. The next prime is 814325719. The reversal of 814325690 is 96523418.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 214124689 + 600201001 = 14633^2 + 24499^2 .

It is a super-2 number, since 2×814325690² = 1326252658787952200, which contains 22 as substring.

It is an alternating number because its digits alternate between even and odd.

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, 79460 + ... + 89120.

Almost surely, 2^814325690 is an apocalyptic number.

814325690 is a deficient number, since it is larger than the sum of its proper divisors (651786190).

814325690 is a wasteful number, since it uses less digits than its factorization.

814325690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18097.

The product of its (nonzero) digits is 51840, while the sum is 38.

The square root of 814325690 is about 28536.3923788555. The cubic root of 814325690 is about 933.8261800409.

It can be divided in two parts, 8143 and 25690, that added together give a palindrome (33833).

The spelling of 814325690 in words is "eight hundred fourteen million, three hundred twenty-five thousand, six hundred ninety".