18514749 has 8 divisors (see below), whose sum is σ = 26930592. Its totient is φ = 11221040.

The previous prime is 18514733. The next prime is 18514753. The reversal of 18514749 is 94741581.

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 18514749 - 2⁴ = 18514733 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18514549) 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, 280494 + ... + 280559.

It is an arithmetic number, because the mean of its divisors is an integer number (3366324).

Almost surely, 2^18514749 is an apocalyptic number.

It is an amenable number.

18514749 is a deficient number, since it is larger than the sum of its proper divisors (8415843).

18514749 is a wasteful number, since it uses less digits than its factorization.

18514749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 561067.

The product of its digits is 40320, while the sum is 39.

The square root of 18514749 is about 4302.8768283557. The cubic root of 18514749 is about 264.5488895636.

The spelling of 18514749 in words is "eighteen million, five hundred fourteen thousand, seven hundred forty-nine".