19472874 has 8 divisors (see below), whose sum is σ = 38945760. Its totient is φ = 6490956.

The previous prime is 19472863. The next prime is 19472903. The reversal of 19472874 is 47827491.

It is a happy number.

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

19472874 is an admirable 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, 1622734 + ... + 1622745.

It is an arithmetic number, because the mean of its divisors is an integer number (4868220).

Almost surely, 2^19472874 is an apocalyptic number.

19472874 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

19472874 is a wasteful number, since it uses less digits than its factorization.

19472874 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3245484.

The product of its digits is 112896, while the sum is 42.

The square root of 19472874 is about 4412.8079495940. The cubic root of 19472874 is about 269.0357649733.

The spelling of 19472874 in words is "nineteen million, four hundred seventy-two thousand, eight hundred seventy-four".