19268955 has 16 divisors (see below), whose sum is σ = 34256160. Its totient is φ = 10276704.

The previous prime is 19268947. The next prime is 19268957. The reversal of 19268955 is 55986291.

It is not a de Polignac number, because 19268955 - 2³ = 19268947 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 19268955.

It is not an unprimeable number, because it can be changed into a prime (19268957) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 71232 + ... + 71501.

It is an arithmetic number, because the mean of its divisors is an integer number (2141010).

Almost surely, 2^19268955 is an apocalyptic number.

19268955 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

19268955 is a deficient number, since it is larger than the sum of its proper divisors (14987205).

19268955 is a wasteful number, since it uses less digits than its factorization.

19268955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142747 (or 142741 counting only the distinct ones).

The product of its digits is 194400, while the sum is 45.

The square root of 19268955 is about 4389.6417849296. The cubic root of 19268955 is about 268.0933577995.

The spelling of 19268955 in words is "nineteen million, two hundred sixty-eight thousand, nine hundred fifty-five".