19378242 has 24 divisors (see below), whose sum is σ = 45216444. Its totient is φ = 5962464.

The previous prime is 19378223. The next prime is 19378253. The reversal of 19378242 is 24287391.

19378242 is nontrivially palindromic in base 14.

It can be written as a sum of positive squares in 2 ways, for example, as 19263321 + 114921 = 4389^2 + 339^2 .

It is a junction number, because it is equal to n+sod(n) for n = 19378197 and 19378206.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 41173 + ... + 41640.

Almost surely, 2^19378242 is an apocalyptic number.

19378242 is an abundant number, since it is smaller than the sum of its proper divisors (25838202).

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

19378242 is a wasteful number, since it uses less digits than its factorization.

19378242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82834 (or 82831 counting only the distinct ones).

The product of its digits is 24192, while the sum is 36.

The square root of 19378242 is about 4402.0724664639. The cubic root of 19378242 is about 268.5992475603.

The spelling of 19378242 in words is "nineteen million, three hundred seventy-eight thousand, two hundred forty-two".