406995620 has 24 divisors (see below), whose sum is σ = 855101688. Its totient is φ = 162720000.

The previous prime is 406995619. The next prime is 406995689. The reversal of 406995620 is 26599604.

It can be written as a sum of positive squares in 4 ways, for example, as 37356544 + 369639076 = 6112^2 + 19226^2 .

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, 56630 + ... + 63410.

It is an arithmetic number, because the mean of its divisors is an integer number (35629237).

Almost surely, 2^406995620 is an apocalyptic number.

It is an amenable number.

406995620 is an abundant number, since it is smaller than the sum of its proper divisors (448106068).

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

406995620 is a wasteful number, since it uses less digits than its factorization.

406995620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9791 (or 9789 counting only the distinct ones).

The product of its (nonzero) digits is 116640, while the sum is 41.

The square root of 406995620 is about 20174.1324472702. The cubic root of 406995620 is about 741.0768471146.

The spelling of 406995620 in words is "four hundred six million, nine hundred ninety-five thousand, six hundred twenty".