18896634 has 36 divisors (see below), whose sum is σ = 41721966. Its totient is φ = 6181056.

The previous prime is 18896629. The next prime is 18896681. The reversal of 18896634 is 43669881.

18896634 is a `hidden beast` number, since 1 + 8 + 8 + 9 + 6 + 634 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 18896409 + 225 = 4347^2 + 15^2 .

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 18896634.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 95824 + ... + 96020.

Almost surely, 2^18896634 is an apocalyptic number.

18896634 is an abundant number, since it is smaller than the sum of its proper divisors (22825332).

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

18896634 is a wasteful number, since it uses less digits than its factorization.

18896634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 351 (or 275 counting only the distinct ones).

The product of its digits is 248832, while the sum is 45.

The square root of 18896634 is about 4347.0258798401. The cubic root of 18896634 is about 266.3553864365.

The spelling of 18896634 in words is "eighteen million, eight hundred ninety-six thousand, six hundred thirty-four".