18798942 has 32 divisors (see below), whose sum is σ = 39985920. Its totient is φ = 5875200.

The previous prime is 18798929. The next prime is 18798943. The reversal of 18798942 is 24989781.

18798942 is a Rhonda number in base 9.

Its product of digits (290304) is a multiple of the sum of its prime divisors (1728).

It is a junction number, because it is equal to n+sod(n) for n = 18798891 and 18798900.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18798943) 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, 10942 + ... + 12542.

It is an arithmetic number, because the mean of its divisors is an integer number (1249560).

Almost surely, 2^18798942 is an apocalyptic number.

18798942 is an abundant number, since it is smaller than the sum of its proper divisors (21186978).

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

18798942 is a wasteful number, since it uses less digits than its factorization.

18798942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1728.

The product of its digits is 290304, while the sum is 48.

The square root of 18798942 is about 4335.7746712669. The cubic root of 18798942 is about 265.8955909602.

The spelling of 18798942 in words is "eighteen million, seven hundred ninety-eight thousand, nine hundred forty-two".