18952893 has 16 divisors (see below), whose sum is σ = 28500160. Its totient is φ = 12445488.

The previous prime is 18952877. The next prime is 18952903. The reversal of 18952893 is 39825981.

It is a happy number.

It is not a de Polignac number, because 18952893 - 2⁴ = 18952877 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18952693) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3430 + ... + 7047.

It is an arithmetic number, because the mean of its divisors is an integer number (1781260).

Almost surely, 2^18952893 is an apocalyptic number.

It is an amenable number.

18952893 is a deficient number, since it is larger than the sum of its proper divisors (9547267).

18952893 is a wasteful number, since it uses less digits than its factorization.

18952893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10553 (or 10547 counting only the distinct ones).

The product of its digits is 155520, while the sum is 45.

The square root of 18952893 is about 4353.4920466219. The cubic root of 18952893 is about 266.6194553574.

The spelling of 18952893 in words is "eighteen million, nine hundred fifty-two thousand, eight hundred ninety-three".