1994356017 has 6 divisors (see below), whose sum is σ = 2880736482. Its totient is φ = 1329570672.

The previous prime is 1994356009. The next prime is 1994356031. The reversal of 1994356017 is 7106534991.

1994356017 is a `hidden beast` number, since 1 + 9 + 9 + 4 + 35 + 601 + 7 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1115292816 + 879063201 = 33396^2 + 29649^2 .

It is not a de Polignac number, because 1994356017 - 2³ = 1994356009 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1994356087) 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, 110797548 + ... + 110797565.

It is an arithmetic number, because the mean of its divisors is an integer number (480122747).

Almost surely, 2^1994356017 is an apocalyptic number.

It is an amenable number.

1994356017 is a deficient number, since it is larger than the sum of its proper divisors (886380465).

1994356017 is a wasteful number, since it uses less digits than its factorization.

1994356017 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221595119 (or 221595116 counting only the distinct ones).

The product of its (nonzero) digits is 204120, while the sum is 45.

The square root of 1994356017 is about 44658.2133207319. The cubic root of 1994356017 is about 1258.7347711401.

The spelling of 1994356017 in words is "one billion, nine hundred ninety-four million, three hundred fifty-six thousand, seventeen".