814049690 has 16 divisors (see below), whose sum is σ = 1466863560. Its totient is φ = 325270080.

The previous prime is 814049689. The next prime is 814049713. The reversal of 814049690 is 96940418.

It can be written as a sum of positive squares in 4 ways, for example, as 594920881 + 219128809 = 24391^2 + 14803^2 .

It is a super-2 number, since 2×814049690² = 1325353795578192200, which contains 22 as substring.

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, 33845 + ... + 52664.

Almost surely, 2^814049690 is an apocalyptic number.

814049690 is a deficient number, since it is larger than the sum of its proper divisors (652813870).

814049690 is a wasteful number, since it uses less digits than its factorization.

814049690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87457.

The product of its (nonzero) digits is 62208, while the sum is 41.

The square root of 814049690 is about 28531.5560388844. The cubic root of 814049690 is about 933.7206673235.

The spelling of 814049690 in words is "eight hundred fourteen million, forty-nine thousand, six hundred ninety".