406867916 has 24 divisors (see below), whose sum is σ = 876331680. Its totient is φ = 160958592.

The previous prime is 406867871. The next prime is 406867921. The reversal of 406867916 is 619768604.

It is a happy number.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 558521 + ... + 559248.

It is an arithmetic number, because the mean of its divisors is an integer number (36513820).

Almost surely, 2^406867916 is an apocalyptic number.

It is an amenable number.

406867916 is an abundant number, since it is smaller than the sum of its proper divisors (469463764).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

406867916 is a wasteful number, since it uses less digits than its factorization.

406867916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1117793 (or 1117791 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 47.

The square root of 406867916 is about 20170.9671557910. The cubic root of 406867916 is about 740.9993291815. Note that the first 3 decimals are identical.

The spelling of 406867916 in words is "four hundred six million, eight hundred sixty-seven thousand, nine hundred sixteen".