19842474 has 16 divisors (see below), whose sum is σ = 39758400. Its totient is φ = 6601920.

The previous prime is 19842463. The next prime is 19842499. The reversal of 19842474 is 47424891.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 834 + ... + 6354.

It is an arithmetic number, because the mean of its divisors is an integer number (2484900).

Almost surely, 2^19842474 is an apocalyptic number.

19842474 is an abundant number, since it is smaller than the sum of its proper divisors (19915926).

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

19842474 is a wasteful number, since it uses less digits than its factorization.

19842474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6125.

The product of its digits is 64512, while the sum is 39.

The square root of 19842474 is about 4454.4891963052. The cubic root of 19842474 is about 270.7272301591.

The spelling of 19842474 in words is "nineteen million, eight hundred forty-two thousand, four hundred seventy-four".