1894138334 has 32 divisors (see below), whose sum is σ = 3287358432. Its totient is φ = 808960000.

The previous prime is 1894138333. The next prime is 1894138369. The reversal of 1894138334 is 4338314981.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1894138333) 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, 235784 + ... + 243684.

It is an arithmetic number, because the mean of its divisors is an integer number (102729951).

Almost surely, 2^1894138334 is an apocalyptic number.

1894138334 is a deficient number, since it is larger than the sum of its proper divisors (1393220098).

1894138334 is a wasteful number, since it uses less digits than its factorization.

1894138334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8572.

The product of its digits is 248832, while the sum is 44.

The square root of 1894138334 is about 43521.6995761884. The cubic root of 1894138334 is about 1237.2873265652.

It can be divided in two parts, 18941 and 38334, that added together give a palindrome (57275).

The spelling of 1894138334 in words is "one billion, eight hundred ninety-four million, one hundred thirty-eight thousand, three hundred thirty-four".