18012046 has 8 divisors (see below), whose sum is σ = 29096424. Its totient is φ = 8313240.

The previous prime is 18012041. The next prime is 18012047. The reversal of 18012046 is 64021081.

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

It is a super-2 number, since 2×18012046² = 648867602212232, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18012041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 346360 + ... + 346411.

It is an arithmetic number, because the mean of its divisors is an integer number (3637053).

Almost surely, 2^18012046 is an apocalyptic number.

18012046 is a deficient number, since it is larger than the sum of its proper divisors (11084378).

18012046 is a wasteful number, since it uses less digits than its factorization.

18012046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 692786.

The product of its (nonzero) digits is 384, while the sum is 22.

The square root of 18012046 is about 4244.0600844003. The cubic root of 18012046 is about 262.1325883304.

The spelling of 18012046 in words is "eighteen million, twelve thousand, forty-six".