19674142 has 4 divisors (see below), whose sum is σ = 29511216. Its totient is φ = 9837070.

The previous prime is 19674113. The next prime is 19674163. The reversal of 19674142 is 24147691.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 24147691 = 29 ⋅832679.

It is a junction number, because it is equal to n+sod(n) for n = 19674098 and 19674107.

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 as a sum of consecutive naturals, namely, 4918534 + ... + 4918537.

It is an arithmetic number, because the mean of its divisors is an integer number (7377804).

Almost surely, 2^19674142 is an apocalyptic number.

19674142 is a deficient number, since it is larger than the sum of its proper divisors (9837074).

19674142 is an equidigital number, since it uses as much as digits as its factorization.

19674142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9837073.

The product of its digits is 12096, while the sum is 34.

The square root of 19674142 is about 4435.5543058337. The cubic root of 19674142 is about 269.9594909505.

The spelling of 19674142 in words is "nineteen million, six hundred seventy-four thousand, one hundred forty-two".