18890852 has 6 divisors (see below), whose sum is σ = 33058998. Its totient is φ = 9445424.

The previous prime is 18890819. The next prime is 18890881. The reversal of 18890852 is 25809881.

It can be written as a sum of positive squares in only one way, i.e., 18887716 + 3136 = 4346^2 + 56^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2361353 + ... + 2361360.

It is an arithmetic number, because the mean of its divisors is an integer number (5509833).

Almost surely, 2^18890852 is an apocalyptic number.

It is an amenable number.

18890852 is a deficient number, since it is larger than the sum of its proper divisors (14168146).

18890852 is a wasteful number, since it uses less digits than its factorization.

18890852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4722717 (or 4722715 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 41.

The square root of 18890852 is about 4346.3607765578. The cubic root of 18890852 is about 266.3282171542.

The spelling of 18890852 in words is "eighteen million, eight hundred ninety thousand, eight hundred fifty-two".