19820414 has 8 divisors (see below), whose sum is σ = 29795688. Its totient is φ = 9888520.

The previous prime is 19820407. The next prime is 19820429. The reversal of 19820414 is 41402891.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×19820414² = 785697622262792, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9677 + ... + 11544.

It is an arithmetic number, because the mean of its divisors is an integer number (3724461).

Almost surely, 2^19820414 is an apocalyptic number.

19820414 is a deficient number, since it is larger than the sum of its proper divisors (9975274).

19820414 is a wasteful number, since it uses less digits than its factorization.

19820414 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21690.

The product of its (nonzero) digits is 2304, while the sum is 29.

The square root of 19820414 is about 4452.0123539811. The cubic root of 19820414 is about 270.6268653677.

The spelling of 19820414 in words is "nineteen million, eight hundred twenty thousand, four hundred fourteen".