2819434 has 4 divisors (see below), whose sum is σ = 4229154. Its totient is φ = 1409716.

The previous prime is 2819423. The next prime is 2819449. The reversal of 2819434 is 4349182.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 4349182 = 2 ⋅2174591.

It can be written as a sum of positive squares in only one way, i.e., 2732409 + 87025 = 1653^2 + 295^2 .

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 a junction number, because it is equal to n+sod(n) for n = 2819396 and 2819405.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 704857 + ... + 704860.

2^2819434 is an apocalyptic number.

2819434 is a deficient number, since it is larger than the sum of its proper divisors (1409720).

2819434 is a wasteful number, since it uses less digits than its factorization.

2819434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1409719.

The product of its digits is 6912, while the sum is 31.

The square root of 2819434 is about 1679.1170298702. The cubic root of 2819434 is about 141.2713116876.

The spelling of 2819434 in words is "two million, eight hundred nineteen thousand, four hundred thirty-four".