19949401 has 8 divisors (see below), whose sum is σ = 20684160. Its totient is φ = 19225008.

The previous prime is 19949393. The next prime is 19949429. The reversal of 19949401 is 10494991.

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 19949401 - 2³ = 19949393 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (19949431) 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, 1440 + ... + 6478.

It is an arithmetic number, because the mean of its divisors is an integer number (2585520).

Almost surely, 2^19949401 is an apocalyptic number.

It is an amenable number.

19949401 is a deficient number, since it is larger than the sum of its proper divisors (734759).

19949401 is a wasteful number, since it uses less digits than its factorization.

19949401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5183.

The product of its (nonzero) digits is 11664, while the sum is 37.

The square root of 19949401 is about 4466.4752322161. The cubic root of 19949401 is about 271.2126569813.

The spelling of 19949401 in words is "nineteen million, nine hundred forty-nine thousand, four hundred one".