18473542 has 8 divisors (see below), whose sum is σ = 27731736. Its totient is φ = 9229632.

The previous prime is 18473537. The next prime is 18473557. The reversal of 18473542 is 24537481.

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

It is a junction number, because it is equal to n+sod(n) for n = 18473498 and 18473507.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 673 + ... + 6115.

It is an arithmetic number, because the mean of its divisors is an integer number (3466467).

Almost surely, 2^18473542 is an apocalyptic number.

18473542 is a deficient number, since it is larger than the sum of its proper divisors (9258194).

18473542 is a wasteful number, since it uses less digits than its factorization.

18473542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7142.

The product of its digits is 26880, while the sum is 34.

The square root of 18473542 is about 4298.0858530281. The cubic root of 18473542 is about 264.3524810407.

The spelling of 18473542 in words is "eighteen million, four hundred seventy-three thousand, five hundred forty-two".