394822032837 has 16 divisors (see below), whose sum is σ = 557413565760. Its totient is φ = 247723580672.

The previous prime is 394822032833. The next prime is 394822032881. The reversal of 394822032837 is 738230228493.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 394822032837 - 2² = 394822032833 is a prime.

It is a super-2 number, since 2×394822032837² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a self number, because there is not a number n which added to its sum of digits gives 394822032837.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (394822032833) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1778239 + ... + 1987907.

It is an arithmetic number, because the mean of its divisors is an integer number (34838347860).

Almost surely, 2^394822032837 is an apocalyptic number.

It is an amenable number.

394822032837 is a deficient number, since it is larger than the sum of its proper divisors (162591532923).

394822032837 is a wasteful number, since it uses less digits than its factorization.

394822032837 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 246612.

The product of its (nonzero) digits is 3483648, while the sum is 51.

The spelling of 394822032837 in words is "three hundred ninety-four billion, eight hundred twenty-two million, thirty-two thousand, eight hundred thirty-seven".