406868620 has 24 divisors (see below), whose sum is σ = 891573984. Its totient is φ = 155671296.

The previous prime is 406868617. The next prime is 406868621. The reversal of 406868620 is 26868604.

It is not an unprimeable number, because it can be changed into a prime (406868621) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 441789 + ... + 442708.

It is an arithmetic number, because the mean of its divisors is an integer number (37148916).

Almost surely, 2^406868620 is an apocalyptic number.

It is an amenable number.

406868620 is an abundant number, since it is smaller than the sum of its proper divisors (484705364).

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

406868620 is a wasteful number, since it uses less digits than its factorization.

406868620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 884529 (or 884527 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 40.

The square root of 406868620 is about 20170.9846066076. The cubic root of 406868620 is about 740.9997565629. Note that the first 3 decimals are identical.

The spelling of 406868620 in words is "four hundred six million, eight hundred sixty-eight thousand, six hundred twenty".