18682949 has 8 divisors (see below), whose sum is σ = 19968768. Its totient is φ = 17417920.

The previous prime is 18682919. The next prime is 18682957. The reversal of 18682949 is 94928681.

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

It is a cyclic number.

It is not a de Polignac number, because 18682949 - 2¹² = 18678853 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18682919) 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, 3317 + ... + 6954.

It is an arithmetic number, because the mean of its divisors is an integer number (2496096).

Almost surely, 2^18682949 is an apocalyptic number.

It is an amenable number.

18682949 is a deficient number, since it is larger than the sum of its proper divisors (1285819).

18682949 is a wasteful number, since it uses less digits than its factorization.

18682949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10395.

The product of its digits is 248832, while the sum is 47.

The square root of 18682949 is about 4322.3777021450. The cubic root of 18682949 is about 265.3475870828.

The spelling of 18682949 in words is "eighteen million, six hundred eighty-two thousand, nine hundred forty-nine".