18850824 has 48 divisors (see below), whose sum is σ = 54061020. Its totient is φ = 5913600.

The previous prime is 18850817. The next prime is 18850829. The reversal of 18850824 is 42805881.

It can be written as a sum of positive squares in 2 ways, for example, as 14516100 + 4334724 = 3810^2 + 2082^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18850829) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6477 + ... + 8924.

Almost surely, 2^18850824 is an apocalyptic number.

It is an amenable number.

18850824 is an abundant number, since it is smaller than the sum of its proper divisors (35210196).

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

18850824 is a wasteful number, since it uses less digits than its factorization.

18850824 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15430 (or 15423 counting only the distinct ones).

The product of its (nonzero) digits is 20480, while the sum is 36.

The square root of 18850824 is about 4341.7535627900. The cubic root of 18850824 is about 266.1399757000.

The spelling of 18850824 in words is "eighteen million, eight hundred fifty thousand, eight hundred twenty-four".