18937064 has 16 divisors (see below), whose sum is σ = 35907300. Its totient is φ = 9361792.

The previous prime is 18937033. The next prime is 18937103. The reversal of 18937064 is 46073981.

It can be written as a sum of positive squares in 2 ways, for example, as 18852964 + 84100 = 4342^2 + 290^2 .

It is a super-2 number, since 2×18937064² = 717224785880192, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12587 + ... + 14010.

Almost surely, 2^18937064 is an apocalyptic number.

It is an amenable number.

18937064 is a deficient number, since it is larger than the sum of its proper divisors (16970236).

18937064 is a wasteful number, since it uses less digits than its factorization.

18937064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26692 (or 26688 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 38.

The square root of 18937064 is about 4351.6737010029. The cubic root of 18937064 is about 266.5452099672.

The spelling of 18937064 in words is "eighteen million, nine hundred thirty-seven thousand, sixty-four".