19693056 has 40 divisors (see below), whose sum is σ = 52467624. Its totient is φ = 6563840.

The previous prime is 19693039. The next prime is 19693067. The reversal of 19693056 is 65039691.

It is a plaindrome in base 14.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4875 + ... + 7946.

Almost surely, 2^19693056 is an apocalyptic number.

19693056 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

19693056 is an abundant number, since it is smaller than the sum of its proper divisors (32774568).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

19693056 is an equidigital number, since it uses as much as digits as its factorization.

19693056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12842 (or 12826 counting only the distinct ones).

The product of its (nonzero) digits is 43740, while the sum is 39.

The square root of 19693056 is about 4437.6858834307. The cubic root of 19693056 is about 270.0459729673.

The spelling of 19693056 in words is "nineteen million, six hundred ninety-three thousand, fifty-six".