2194874419 has 2 divisors, whose sum is σ = 2194874420. Its totient is φ = 2194874418.

The previous prime is 2194874411. The next prime is 2194874453. The reversal of 2194874419 is 9144784912.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2194874419 - 2³ = 2194874411 is a prime.

It is a super-2 number, since 2×2194874419² = 9634947430361175122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2194874411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1097437209 + 1097437210.

It is an arithmetic number, because the mean of its divisors is an integer number (1097437210).

Almost surely, 2^2194874419 is an apocalyptic number.

2194874419 is a deficient number, since it is larger than the sum of its proper divisors (1).

2194874419 is an equidigital number, since it uses as much as digits as its factorization.

2194874419 is an evil number, because the sum of its binary digits is even.

The product of its digits is 580608, while the sum is 49.

The square root of 2194874419 is about 46849.4868595164. The cubic root of 2194874419 is about 1299.5806179757.

The spelling of 2194874419 in words is "two billion, one hundred ninety-four million, eight hundred seventy-four thousand, four hundred nineteen".