1894534774 has 16 divisors (see below), whose sum is σ = 3282510096. Its totient is φ = 810496000.

The previous prime is 1894534753. The next prime is 1894534799. The reversal of 1894534774 is 4774354981.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2532427 + ... + 2533174.

It is an arithmetic number, because the mean of its divisors is an integer number (205156881).

Almost surely, 2^1894534774 is an apocalyptic number.

1894534774 is a deficient number, since it is larger than the sum of its proper divisors (1387975322).

1894534774 is a wasteful number, since it uses less digits than its factorization.

1894534774 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5065631.

The product of its digits is 3386880, while the sum is 52.

The square root of 1894534774 is about 43526.2538475344. The cubic root of 1894534774 is about 1237.3736412695.

The spelling of 1894534774 in words is "one billion, eight hundred ninety-four million, five hundred thirty-four thousand, seven hundred seventy-four".