406260040 has 32 divisors (see below), whose sum is σ = 953830080. Its totient is φ = 155438272.

The previous prime is 406260013. The next prime is 406260073. The reversal of 406260040 is 40062604.

It is a junction number, because it is equal to n+sod(n) for n = 406259993 and 406260020.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 219874 + ... + 221713.

It is an arithmetic number, because the mean of its divisors is an integer number (29807190).

Almost surely, 2^406260040 is an apocalyptic number.

406260040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

406260040 is an abundant number, since it is smaller than the sum of its proper divisors (547570040).

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

406260040 is a wasteful number, since it uses less digits than its factorization.

406260040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 441621 (or 441617 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 406260040 is about 20155.8934309546. The cubic root of 406260040 is about 740.6301182743.

The spelling of 406260040 in words is "four hundred six million, two hundred sixty thousand, forty".