19139344 has 20 divisors (see below), whose sum is σ = 42380224. Its totient is φ = 8202528.

The previous prime is 19139303. The next prime is 19139347. The reversal of 19139344 is 44393191.

It is not an unprimeable number, because it can be changed into a prime (19139347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 85332 + ... + 85555.

Almost surely, 2^19139344 is an apocalyptic number.

19139344 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

19139344 is an abundant number, since it is smaller than the sum of its proper divisors (23240880).

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

19139344 is a wasteful number, since it uses less digits than its factorization.

19139344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170902 (or 170896 counting only the distinct ones).

The product of its digits is 11664, while the sum is 34.

The square root of 19139344 is about 4374.8535975504. The cubic root of 19139344 is about 267.4909025351.

The spelling of 19139344 in words is "nineteen million, one hundred thirty-nine thousand, three hundred forty-four".