19049901 has 8 divisors (see below), whose sum is σ = 27353760. Its totient is φ = 11722992.

The previous prime is 19049893. The next prime is 19049923. The reversal of 19049901 is 10994091.

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

It is not a de Polignac number, because 19049901 - 2³ = 19049893 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19049941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 244191 + ... + 244268.

It is an arithmetic number, because the mean of its divisors is an integer number (3419220).

Almost surely, 2^19049901 is an apocalyptic number.

It is an amenable number.

19049901 is a deficient number, since it is larger than the sum of its proper divisors (8303859).

19049901 is a wasteful number, since it uses less digits than its factorization.

19049901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 488475.

The product of its (nonzero) digits is 2916, while the sum is 33.

The square root of 19049901 is about 4364.6192273783. The cubic root of 19049901 is about 267.0735675183.

The spelling of 19049901 in words is "nineteen million, forty-nine thousand, nine hundred one".