19149268 has 12 divisors (see below), whose sum is σ = 33983712. Its totient is φ = 9439640.

The previous prime is 19149253. The next prime is 19149269. The reversal of 19149268 is 86294191.

It is a self number, because there is not a number n which added to its sum of digits gives 19149268.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19149269) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33430 + ... + 33997.

It is an arithmetic number, because the mean of its divisors is an integer number (2831976).

Almost surely, 2^19149268 is an apocalyptic number.

It is an amenable number.

19149268 is a deficient number, since it is larger than the sum of its proper divisors (14834444).

19149268 is a wasteful number, since it uses less digits than its factorization.

19149268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67502 (or 67500 counting only the distinct ones).

The product of its digits is 31104, while the sum is 40.

The square root of 19149268 is about 4375.9876599460. The cubic root of 19149268 is about 267.5371270563.

The spelling of 19149268 in words is "nineteen million, one hundred forty-nine thousand, two hundred sixty-eight".