394481368237 has 24 divisors (see below), whose sum is σ = 459687904256. Its totient is φ = 337671180000.

The previous prime is 394481368231. The next prime is 394481368249. The reversal of 394481368237 is 732863184493.

It is not a de Polignac number, because 394481368237 - 2¹⁹ = 394480843949 is a prime.

It is a super-2 number, since 2×394481368237² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (394481368231) 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, 1282389 + ... + 1559962.

Almost surely, 2^394481368237 is an apocalyptic number.

394481368237 is a gapful number since it is divisible by the number (37) formed by its first and last digit.

It is an amenable number.

394481368237 is a deficient number, since it is larger than the sum of its proper divisors (65206536019).

394481368237 is a wasteful number, since it uses less digits than its factorization.

394481368237 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2842441 (or 2842430 counting only the distinct ones).

The product of its digits is 20901888, while the sum is 58.

The spelling of 394481368237 in words is "three hundred ninety-four billion, four hundred eighty-one million, three hundred sixty-eight thousand, two hundred thirty-seven".