19869414 has 16 divisors (see below), whose sum is σ = 39915120. Its totient is φ = 6593760.

The previous prime is 19869403. The next prime is 19869433. The reversal of 19869414 is 41496891.

It is a super-2 number, since 2×19869414² = 789587225406792, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5857 + ... + 8604.

It is an arithmetic number, because the mean of its divisors is an integer number (2494695).

Almost surely, 2^19869414 is an apocalyptic number.

19869414 is an abundant number, since it is smaller than the sum of its proper divisors (20045706).

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

19869414 is a wasteful number, since it uses less digits than its factorization.

19869414 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14695.

The product of its digits is 62208, while the sum is 42.

The square root of 19869414 is about 4457.5120863549. The cubic root of 19869414 is about 270.8496962947.

The spelling of 19869414 in words is "nineteen million, eight hundred sixty-nine thousand, four hundred fourteen".