18948669 has 8 divisors (see below), whose sum is σ = 25497120. Its totient is φ = 12516336.

The previous prime is 18948653. The next prime is 18948679. The reversal of 18948669 is 96684981.

18948669 = 1447² + 1448² + ... + 1455².

It is a happy number.

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

It is not a de Polignac number, because 18948669 - 2⁴ = 18948653 is a prime.

It is a super-2 number, since 2×18948669² = 718104113743122, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18948649) 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, 28647 + ... + 29300.

It is an arithmetic number, because the mean of its divisors is an integer number (3187140).

Almost surely, 2^18948669 is an apocalyptic number.

It is an amenable number.

18948669 is a deficient number, since it is larger than the sum of its proper divisors (6548451).

18948669 is a wasteful number, since it uses less digits than its factorization.

18948669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58059.

The product of its digits is 746496, while the sum is 51.

The square root of 18948669 is about 4353.0068917933. The cubic root of 18948669 is about 266.5996468730.

The spelling of 18948669 in words is "eighteen million, nine hundred forty-eight thousand, six hundred sixty-nine".