1894434854 has 32 divisors (see below), whose sum is σ = 3147439680. Its totient is φ = 849508992.

The previous prime is 1894434853. The next prime is 1894434869. The reversal of 1894434854 is 4584344981.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1894434853) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1268132 + ... + 1269624.

It is an arithmetic number, because the mean of its divisors is an integer number (98357490).

Almost surely, 2^1894434854 is an apocalyptic number.

1894434854 is a deficient number, since it is larger than the sum of its proper divisors (1253004826).

1894434854 is a wasteful number, since it uses less digits than its factorization.

1894434854 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2864.

The product of its digits is 2211840, while the sum is 50.

The square root of 1894434854 is about 43525.1060193999. The cubic root of 1894434854 is about 1237.3518873717.

The spelling of 1894434854 in words is "one billion, eight hundred ninety-four million, four hundred thirty-four thousand, eight hundred fifty-four".