18426712 has 16 divisors (see below), whose sum is σ = 35393400. Its totient is φ = 8988480.

The previous prime is 18426673. The next prime is 18426761. The reversal of 18426712 is 21762481.

It is a congruent number.

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, 27762 + ... + 28417.

Almost surely, 2^18426712 is an apocalyptic number.

It is an amenable number.

18426712 is a deficient number, since it is larger than the sum of its proper divisors (16966688).

18426712 is a wasteful number, since it uses less digits than its factorization.

18426712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56226 (or 56222 counting only the distinct ones).

The product of its digits is 5376, while the sum is 31.

The square root of 18426712 is about 4292.6346222338. The cubic root of 18426712 is about 264.1289162233.

It can be divided in two parts, 184 and 26712, that added together give a square (26896 = 164²).

The spelling of 18426712 in words is "eighteen million, four hundred twenty-six thousand, seven hundred twelve".