2019874 has 4 divisors (see below), whose sum is σ = 3029814. Its totient is φ = 1009936.

The previous prime is 2019869. The next prime is 2019881. The reversal of 2019874 is 4789102.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1803649 + 216225 = 1343^2 + 465^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 504967 + ... + 504970.

2^2019874 is an apocalyptic number.

2019874 is a deficient number, since it is larger than the sum of its proper divisors (1009940).

2019874 is a wasteful number, since it uses less digits than its factorization.

2019874 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1009939.

The product of its (nonzero) digits is 4032, while the sum is 31.

The square root of 2019874 is about 1421.2227130186. Note that the first 3 decimals coincide. The cubic root of 2019874 is about 126.4080580907.

The spelling of 2019874 in words is "two million, nineteen thousand, eight hundred seventy-four".