394017836 has 6 divisors (see below), whose sum is σ = 689531220. Its totient is φ = 197008916.

The previous prime is 394017829. The next prime is 394017851. The reversal of 394017836 is 638710493.

It is a super-2 number, since 2×394017836² = 310500110172245792, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 394017793 and 394017802.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49252226 + ... + 49252233.

It is an arithmetic number, because the mean of its divisors is an integer number (114921870).

Almost surely, 2^394017836 is an apocalyptic number.

It is an amenable number.

394017836 is a deficient number, since it is larger than the sum of its proper divisors (295513384).

394017836 is a wasteful number, since it uses less digits than its factorization.

394017836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98504463 (or 98504461 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 41.

The square root of 394017836 is about 19849.8825185440. The cubic root of 394017836 is about 733.1147551507.

The spelling of 394017836 in words is "three hundred ninety-four million, seventeen thousand, eight hundred thirty-six".