818514492 has 36 divisors (see below), whose sum is σ = 1925479080. Its totient is φ = 270625824.

The previous prime is 818514491. The next prime is 818514511. The reversal of 818514492 is 294415818.

It is a super-2 number, since 2×818514492² = 1339931947228036128, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (818514491) 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 11 ways as a sum of consecutive naturals, for example, 191434 + ... + 195662.

It is an arithmetic number, because the mean of its divisors is an integer number (53485530).

Almost surely, 2^818514492 is an apocalyptic number.

It is an amenable number.

818514492 is an abundant number, since it is smaller than the sum of its proper divisors (1106964588).

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

818514492 is a wasteful number, since it uses less digits than its factorization.

818514492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4490 (or 4361 counting only the distinct ones).

The product of its digits is 92160, while the sum is 42.

The square root of 818514492 is about 28609.6922737732. The cubic root of 818514492 is about 935.4246089212.

The spelling of 818514492 in words is "eight hundred eighteen million, five hundred fourteen thousand, four hundred ninety-two".