394968142 has 4 divisors (see below), whose sum is σ = 592452216. Its totient is φ = 197484070.

The previous prime is 394968113. The next prime is 394968151. The reversal of 394968142 is 241869493.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 394968092 and 394968101.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98742034 + ... + 98742037.

It is an arithmetic number, because the mean of its divisors is an integer number (148113054).

Almost surely, 2^394968142 is an apocalyptic number.

394968142 is a deficient number, since it is larger than the sum of its proper divisors (197484074).

394968142 is a wasteful number, since it uses less digits than its factorization.

394968142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197484073.

The product of its digits is 373248, while the sum is 46.

The square root of 394968142 is about 19873.8054232198. The cubic root of 394968142 is about 733.7036658894.

The spelling of 394968142 in words is "three hundred ninety-four million, nine hundred sixty-eight thousand, one hundred forty-two".