194242807 has 16 divisors (see below), whose sum is σ = 220262400. Its totient is φ = 169696800.

The previous prime is 194242793. The next prime is 194242813. The reversal of 194242807 is 708242491.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-194242807 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (194242837) 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, 48898 + ... + 52720.

It is an arithmetic number, because the mean of its divisors is an integer number (13766400).

Almost surely, 2^194242807 is an apocalyptic number.

194242807 is a deficient number, since it is larger than the sum of its proper divisors (26019593).

194242807 is a wasteful number, since it uses less digits than its factorization.

194242807 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4014.

The product of its (nonzero) digits is 32256, while the sum is 37.

The square root of 194242807 is about 13937.1018149399. The cubic root of 194242807 is about 579.1374485637.

The spelling of 194242807 in words is "one hundred ninety-four million, two hundred forty-two thousand, eight hundred seven".