1994031117 has 24 divisors (see below), whose sum is σ = 3107852384. Its totient is φ = 1224712224.

The previous prime is 1994031113. The next prime is 1994031119. The reversal of 1994031117 is 7111304991.

It is not a de Polignac number, because 1994031117 - 2² = 1994031113 is a prime.

It is a super-4 number, since 4×1994031117⁴ (a number of 38 digits) contains 4444 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1994031113) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 44898 + ... + 77484.

Almost surely, 2^1994031117 is an apocalyptic number.

It is an amenable number.

1994031117 is a deficient number, since it is larger than the sum of its proper divisors (1113821267).

1994031117 is a wasteful number, since it uses less digits than its factorization.

1994031117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33129 (or 33126 counting only the distinct ones).

The product of its (nonzero) digits is 6804, while the sum is 36.

The square root of 1994031117 is about 44654.5755438343. The cubic root of 1994031117 is about 1258.6664140474. Note that the first 3 decimals are identical.

The spelling of 1994031117 in words is "one billion, nine hundred ninety-four million, thirty-one thousand, one hundred seventeen".