405662244 has 48 divisors (see below), whose sum is σ = 1022414400. Its totient is φ = 124444800.

The previous prime is 405662239. The next prime is 405662281. The reversal of 405662244 is 442266504.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50719 + ... + 58169.

It is an arithmetic number, because the mean of its divisors is an integer number (21300300).

Almost surely, 2^405662244 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 405662244, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (511207200).

405662244 is an abundant number, since it is smaller than the sum of its proper divisors (616752156).

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

405662244 is a wasteful number, since it uses less digits than its factorization.

405662244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7820 (or 7818 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 33.

The square root of 405662244 is about 20141.0586613514. The cubic root of 405662244 is about 740.2666703859.

The spelling of 405662244 in words is "four hundred five million, six hundred sixty-two thousand, two hundred forty-four".