18449708 has 6 divisors (see below), whose sum is σ = 32286996. Its totient is φ = 9224852.

The previous prime is 18449707. The next prime is 18449719. The reversal of 18449708 is 80794481.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (18449701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2306210 + ... + 2306217.

It is an arithmetic number, because the mean of its divisors is an integer number (5381166).

Almost surely, 2^18449708 is an apocalyptic number.

It is an amenable number.

18449708 is a deficient number, since it is larger than the sum of its proper divisors (13837288).

18449708 is a wasteful number, since it uses less digits than its factorization.

18449708 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4612431 (or 4612429 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 41.

The square root of 18449708 is about 4295.3123285740. The cubic root of 18449708 is about 264.2387456134.

The spelling of 18449708 in words is "eighteen million, four hundred forty-nine thousand, seven hundred eight".