19113628 has 6 divisors (see below), whose sum is σ = 33448856. Its totient is φ = 9556812.

The previous prime is 19113623. The next prime is 19113641. The reversal of 19113628 is 82631191.

It is a self number, because there is not a number n which added to its sum of digits gives 19113628.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19113623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2389200 + ... + 2389207.

Almost surely, 2^19113628 is an apocalyptic number.

It is an amenable number.

19113628 is a deficient number, since it is larger than the sum of its proper divisors (14335228).

19113628 is a wasteful number, since it uses less digits than its factorization.

19113628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4778411 (or 4778409 counting only the distinct ones).

The product of its digits is 2592, while the sum is 31.

The square root of 19113628 is about 4371.9135398587. The cubic root of 19113628 is about 267.3710468218.

The spelling of 19113628 in words is "nineteen million, one hundred thirteen thousand, six hundred twenty-eight".