1900399017 has 12 divisors (see below), whose sum is σ = 2785158320. Its totient is φ = 1151756760.

The previous prime is 1900398979. The next prime is 1900399031. The reversal of 1900399017 is 7109930091.

It is not a de Polignac number, because 1900399017 - 2¹⁶ = 1900333481 is a prime.

It is a super-2 number, since 2×1900399017² = 7223032847629132578, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1900399517) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2617267 + ... + 2617992.

Almost surely, 2^1900399017 is an apocalyptic number.

It is an amenable number.

1900399017 is a deficient number, since it is larger than the sum of its proper divisors (884759303).

1900399017 is a wasteful number, since it uses less digits than its factorization.

1900399017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5235284 (or 5235273 counting only the distinct ones).

The product of its (nonzero) digits is 15309, while the sum is 39.

The square root of 1900399017 is about 43593.5662340213. The cubic root of 1900399017 is about 1238.6490266184.

The spelling of 1900399017 in words is "one billion, nine hundred million, three hundred ninety-nine thousand, seventeen".