1900868733 has 6 divisors (see below), whose sum is σ = 2745699294. Its totient is φ = 1267245816.

The previous prime is 1900868731. The next prime is 1900868777. The reversal of 1900868733 is 3378680091.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1726153209 + 174715524 = 41547^2 + 13218^2 .

It is not a de Polignac number, because 1900868733 - 2¹ = 1900868731 is a prime.

It is a super-2 number, since 2×1900868733² = 7226603880194050578, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1900868731) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 105603810 + ... + 105603827.

It is an arithmetic number, because the mean of its divisors is an integer number (457616549).

Almost surely, 2^1900868733 is an apocalyptic number.

It is an amenable number.

1900868733 is a deficient number, since it is larger than the sum of its proper divisors (844830561).

1900868733 is a wasteful number, since it uses less digits than its factorization.

1900868733 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211207643 (or 211207640 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 45.

The square root of 1900868733 is about 43598.9533475289. The cubic root of 1900868733 is about 1238.7510692829.

The spelling of 1900868733 in words is "one billion, nine hundred million, eight hundred sixty-eight thousand, seven hundred thirty-three".