406971836 has 12 divisors (see below), whose sum is σ = 714973728. Its totient is φ = 202693632.

The previous prime is 406971797. The next prime is 406971839. The reversal of 406971836 is 638179604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (406971839) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 196916 + ... + 198971.

It is an arithmetic number, because the mean of its divisors is an integer number (59581144).

Almost surely, 2^406971836 is an apocalyptic number.

It is an amenable number.

406971836 is a deficient number, since it is larger than the sum of its proper divisors (308001892).

406971836 is a wasteful number, since it uses less digits than its factorization.

406971836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 396148 (or 396146 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 44.

The square root of 406971836 is about 20173.5429709310. The cubic root of 406971836 is about 741.0624111566.

The spelling of 406971836 in words is "four hundred six million, nine hundred seventy-one thousand, eight hundred thirty-six".