19340042 has 8 divisors (see below), whose sum is σ = 30010500. Its totient is φ = 9336544.

The previous prime is 19340039. The next prime is 19340047. The reversal of 19340042 is 24004391.

It can be written as a sum of positive squares in 2 ways, for example, as 17799961 + 1540081 = 4219^2 + 1241^2 .

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

It is not an unprimeable number, because it can be changed into a prime (19340047) by changing a digit.

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, 166667 + ... + 166782.

Almost surely, 2^19340042 is an apocalyptic number.

19340042 is a deficient number, since it is larger than the sum of its proper divisors (10670458).

19340042 is a wasteful number, since it uses less digits than its factorization.

19340042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 333480.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 19340042 is about 4397.7314606510. The cubic root of 19340042 is about 268.4226364112.

The spelling of 19340042 in words is "nineteen million, three hundred forty thousand, forty-two".