19669468 has 24 divisors (see below), whose sum is σ = 42365792. Its totient is φ = 7781184.

The previous prime is 19669457. The next prime is 19669471. The reversal of 19669468 is 86496691.

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 7 ways as a sum of consecutive naturals, for example, 26655 + ... + 27382.

Almost surely, 2^19669468 is an apocalyptic number.

It is an amenable number.

19669468 is an abundant number, since it is smaller than the sum of its proper divisors (22696324).

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

19669468 is a wasteful number, since it uses less digits than its factorization.

19669468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54061 (or 54059 counting only the distinct ones).

The product of its digits is 559872, while the sum is 49.

The square root of 19669468 is about 4435.0273956313. The cubic root of 19669468 is about 269.9381111008.

The spelling of 19669468 in words is "nineteen million, six hundred sixty-nine thousand, four hundred sixty-eight".