18694948 has 6 divisors (see below), whose sum is σ = 32716166. Its totient is φ = 9347472.

The previous prime is 18694931. The next prime is 18694957. The reversal of 18694948 is 84949681.

It can be written as a sum of positive squares in only one way, i.e., 16064064 + 2630884 = 4008^2 + 1622^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2336865 + ... + 2336872.

Almost surely, 2^18694948 is an apocalyptic number.

It is an amenable number.

18694948 is a deficient number, since it is larger than the sum of its proper divisors (14021218).

18694948 is a wasteful number, since it uses less digits than its factorization.

18694948 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4673741 (or 4673739 counting only the distinct ones).

The product of its digits is 497664, while the sum is 49.

The square root of 18694948 is about 4323.7654885528. The cubic root of 18694948 is about 265.4043808350.

The spelling of 18694948 in words is "eighteen million, six hundred ninety-four thousand, nine hundred forty-eight".