18469442 has 8 divisors (see below), whose sum is σ = 27820800. Its totient is φ = 9195844.

The previous prime is 18469441. The next prime is 18469453. The reversal of 18469442 is 24496481.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×18469442² = 682240575582728, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 18469396 and 18469405.

It is not an unprimeable number, because it can be changed into a prime (18469441) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18842 + ... + 19797.

It is an arithmetic number, because the mean of its divisors is an integer number (3477600).

Almost surely, 2^18469442 is an apocalyptic number.

18469442 is a deficient number, since it is larger than the sum of its proper divisors (9351358).

18469442 is a wasteful number, since it uses less digits than its factorization.

18469442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38880.

The product of its digits is 55296, while the sum is 38.

The square root of 18469442 is about 4297.6088700579. The cubic root of 18469442 is about 264.3329228826.

The spelling of 18469442 in words is "eighteen million, four hundred sixty-nine thousand, four hundred forty-two".