18890696 has 16 divisors (see below), whose sum is σ = 38640240. Its totient is φ = 8586640.

The previous prime is 18890671. The next prime is 18890741. The reversal of 18890696 is 69609881.

It is a self number, because there is not a number n which added to its sum of digits gives 18890696.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 107246 + ... + 107421.

It is an arithmetic number, because the mean of its divisors is an integer number (2415015).

Almost surely, 2^18890696 is an apocalyptic number.

It is an amenable number.

18890696 is an abundant number, since it is smaller than the sum of its proper divisors (19749544).

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

18890696 is a wasteful number, since it uses less digits than its factorization.

18890696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214684 (or 214680 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 47.

The square root of 18890696 is about 4346.3428304725. The cubic root of 18890696 is about 266.3274840425.

The spelling of 18890696 in words is "eighteen million, eight hundred ninety thousand, six hundred ninety-six".