406867620 has 24 divisors (see below), whose sum is σ = 1139229504. Its totient is φ = 108498016.

The previous prime is 406867619. The next prime is 406867633. The reversal of 406867620 is 26768604.

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, 3390504 + ... + 3390623.

It is an arithmetic number, because the mean of its divisors is an integer number (47467896).

Almost surely, 2^406867620 is an apocalyptic number.

It is an amenable number.

406867620 is an abundant number, since it is smaller than the sum of its proper divisors (732361884).

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

406867620 is a wasteful number, since it uses less digits than its factorization.

406867620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6781139 (or 6781137 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 39.

The square root of 406867620 is about 20170.9598185114. The cubic root of 406867620 is about 740.9991494870. Note that the first 3 decimals are identical.

The spelling of 406867620 in words is "four hundred six million, eight hundred sixty-seven thousand, six hundred twenty".