18742046 has 8 divisors (see below), whose sum is σ = 28132104. Its totient is φ = 9364680.

The previous prime is 18742021. The next prime is 18742051. The reversal of 18742046 is 64024781.

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

It is a super-2 number, since 2×18742046² = 702528576532232, which contains 22 as substring.

It is a congruent number.

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, 2681 + ... + 6683.

It is an arithmetic number, because the mean of its divisors is an integer number (3516513).

Almost surely, 2^18742046 is an apocalyptic number.

18742046 is a deficient number, since it is larger than the sum of its proper divisors (9390058).

18742046 is a wasteful number, since it uses less digits than its factorization.

18742046 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6346.

The product of its (nonzero) digits is 10752, while the sum is 32.

The square root of 18742046 is about 4329.2084726887. The cubic root of 18742046 is about 265.6270708212.

The spelling of 18742046 in words is "eighteen million, seven hundred forty-two thousand, forty-six".