19105412 has 12 divisors (see below), whose sum is σ = 35194320. Its totient is φ = 9049896.

The previous prime is 19105409. The next prime is 19105441. The reversal of 19105412 is 21450191.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 125618 + ... + 125769.

It is an arithmetic number, because the mean of its divisors is an integer number (2932860).

Almost surely, 2^19105412 is an apocalyptic number.

It is an amenable number.

19105412 is a deficient number, since it is larger than the sum of its proper divisors (16088908).

19105412 is a wasteful number, since it uses less digits than its factorization.

19105412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251410 (or 251408 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 23.

The square root of 19105412 is about 4370.9738045429. The cubic root of 19105412 is about 267.3327314839.

The spelling of 19105412 in words is "nineteen million, one hundred five thousand, four hundred twelve".