19342874 has 8 divisors (see below), whose sum is σ = 30541440. Its totient is φ = 9162396.

The previous prime is 19342859. The next prime is 19342877. The reversal of 19342874 is 47824391.

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

It is a Harshad number since it is a multiple of its sum of digits (38), and also a Moran number because the ratio is a prime number: 509023 = 19342874 / (1 + 9 + 3 + 4 + 2 + 8 + 7 + 4).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (19342877) 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, 254474 + ... + 254549.

It is an arithmetic number, because the mean of its divisors is an integer number (3817680).

Almost surely, 2^19342874 is an apocalyptic number.

19342874 is a deficient number, since it is larger than the sum of its proper divisors (11198566).

19342874 is a wasteful number, since it uses less digits than its factorization.

19342874 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 509044.

The product of its digits is 48384, while the sum is 38.

The square root of 19342874 is about 4398.0534330542. The cubic root of 19342874 is about 268.4357376548.

The spelling of 19342874 in words is "nineteen million, three hundred forty-two thousand, eight hundred seventy-four".