19814401 has 8 divisors (see below), whose sum is σ = 21427200. Its totient is φ = 18251328.

The previous prime is 19814387. The next prime is 19814429. The reversal of 19814401 is 10441891.

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

It is a cyclic number.

It is not a de Polignac number, because 19814401 - 2⁷ = 19814273 is a prime.

It is a super-3 number, since 3×19814401³ (a number of 23 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 19814401.

It is not an unprimeable number, because it can be changed into a prime (19814461) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11601 + ... + 13198.

It is an arithmetic number, because the mean of its divisors is an integer number (2678400).

Almost surely, 2^19814401 is an apocalyptic number.

It is an amenable number.

19814401 is a deficient number, since it is larger than the sum of its proper divisors (1612799).

19814401 is a wasteful number, since it uses less digits than its factorization.

19814401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24863.

The product of its (nonzero) digits is 1152, while the sum is 28.

The square root of 19814401 is about 4451.3369901637. The cubic root of 19814401 is about 270.5994955403.

The spelling of 19814401 in words is "nineteen million, eight hundred fourteen thousand, four hundred one".