20494612 has 12 divisors (see below), whose sum is σ = 36047200. Its totient is φ = 10195416.

The previous prime is 20494603. The next prime is 20494651. The reversal of 20494612 is 21649402.

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, 12078 + ... + 13669.

Almost surely, 2^20494612 is an apocalyptic number.

It is an amenable number.

20494612 is a deficient number, since it is larger than the sum of its proper divisors (15552588).

20494612 is a wasteful number, since it uses less digits than its factorization.

20494612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25950 (or 25948 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 20494612 is about 4527.0975249049. The cubic root of 20494612 is about 273.6612041468.

The spelling of 20494612 in words is "twenty million, four hundred ninety-four thousand, six hundred twelve".