18925349 has 8 divisors (see below), whose sum is σ = 20346240. Its totient is φ = 17546976.

The previous prime is 18925321. The next prime is 18925351. The reversal of 18925349 is 94352981.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-18925349 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18925549) 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, 9704 + ... + 11489.

It is an arithmetic number, because the mean of its divisors is an integer number (2543280).

Almost surely, 2^18925349 is an apocalyptic number.

18925349 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

18925349 is a deficient number, since it is larger than the sum of its proper divisors (1420891).

18925349 is a wasteful number, since it uses less digits than its factorization.

18925349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21259.

The product of its digits is 77760, while the sum is 41.

The square root of 18925349 is about 4350.3274589392. The cubic root of 18925349 is about 266.4902345099.

The spelling of 18925349 in words is "eighteen million, nine hundred twenty-five thousand, three hundred forty-nine".