19490342 has 8 divisors (see below), whose sum is σ = 30025776. Its totient is φ = 9481752.

The previous prime is 19490329. The next prime is 19490357. The reversal of 19490342 is 24309491.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 19490299 and 19490308.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 131618 + ... + 131765.

It is an arithmetic number, because the mean of its divisors is an integer number (3753222).

Almost surely, 2^19490342 is an apocalyptic number.

19490342 is a deficient number, since it is larger than the sum of its proper divisors (10535434).

19490342 is a wasteful number, since it uses less digits than its factorization.

19490342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 263422.

The product of its (nonzero) digits is 7776, while the sum is 32.

The square root of 19490342 is about 4414.7867445665. The cubic root of 19490342 is about 269.1161864563.

The spelling of 19490342 in words is "nineteen million, four hundred ninety thousand, three hundred forty-two".