19396542 has 24 divisors (see below), whose sum is σ = 42641928. Its totient is φ = 5877520.

The previous prime is 19396471. The next prime is 19396543. The reversal of 19396542 is 24569391.

It is a self number, because there is not a number n which added to its sum of digits gives 19396542.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19396543) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12633 + ... + 14084.

It is an arithmetic number, because the mean of its divisors is an integer number (1776747).

Almost surely, 2^19396542 is an apocalyptic number.

19396542 is an abundant number, since it is smaller than the sum of its proper divisors (23245386).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

19396542 is a wasteful number, since it uses less digits than its factorization.

19396542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26744 (or 26733 counting only the distinct ones).

The product of its digits is 58320, while the sum is 39.

The square root of 19396542 is about 4404.1505423861. The cubic root of 19396542 is about 268.6837722513.

The spelling of 19396542 in words is "nineteen million, three hundred ninety-six thousand, five hundred forty-two".