18974344 has 16 divisors (see below), whose sum is σ = 35665920. Its totient is φ = 9463440.

The previous prime is 18974339. The next prime is 18974357. The reversal of 18974344 is 44347981.

It is a junction number, because it is equal to n+sod(n) for n = 18974297 and 18974306.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 697 + ... + 6199.

It is an arithmetic number, because the mean of its divisors is an integer number (2229120).

Almost surely, 2^18974344 is an apocalyptic number.

It is an amenable number.

18974344 is a deficient number, since it is larger than the sum of its proper divisors (16691576).

18974344 is a wasteful number, since it uses less digits than its factorization.

18974344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5940 (or 5936 counting only the distinct ones).

The product of its digits is 96768, while the sum is 40.

The square root of 18974344 is about 4355.9550043590. The cubic root of 18974344 is about 266.7200046086.

It can be divided in two parts, 1897 and 4344, that added together give a square (6241 = 79²).

The spelling of 18974344 in words is "eighteen million, nine hundred seventy-four thousand, three hundred forty-four".