18494061 has 8 divisors (see below), whose sum is σ = 24679200. Its totient is φ = 12319152.

The previous prime is 18494057. The next prime is 18494123. The reversal of 18494061 is 16049481.

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

It is not a de Polignac number, because 18494061 - 2² = 18494057 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18494051) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4266 + ... + 7428.

It is an arithmetic number, because the mean of its divisors is an integer number (3084900).

Almost surely, 2^18494061 is an apocalyptic number.

It is an amenable number.

18494061 is a deficient number, since it is larger than the sum of its proper divisors (6185139).

18494061 is a wasteful number, since it uses less digits than its factorization.

18494061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5115.

The product of its (nonzero) digits is 6912, while the sum is 33.

The square root of 18494061 is about 4300.4721833771. The cubic root of 18494061 is about 264.4503190102.

The spelling of 18494061 in words is "eighteen million, four hundred ninety-four thousand, sixty-one".