406286620 has 24 divisors (see below), whose sum is σ = 880725888. Its totient is φ = 157272000.

The previous prime is 406286611. The next prime is 406286653. The reversal of 406286620 is 26682604.

It is a congruent number.

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, 327031 + ... + 328270.

It is an arithmetic number, because the mean of its divisors is an integer number (36696912).

Almost surely, 2^406286620 is an apocalyptic number.

It is an amenable number.

406286620 is an abundant number, since it is smaller than the sum of its proper divisors (474439268).

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

406286620 is a wasteful number, since it uses less digits than its factorization.

406286620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 655341 (or 655339 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 34.

The square root of 406286620 is about 20156.5527806716. The cubic root of 406286620 is about 740.6462700960.

The spelling of 406286620 in words is "four hundred six million, two hundred eighty-six thousand, six hundred twenty".