405227244 has 24 divisors (see below), whose sum is σ = 949132800. Its totient is φ = 134561104.

The previous prime is 405227233. The next prime is 405227287. The reversal of 405227244 is 442722504.

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, 61044 + ... + 67355.

It is an arithmetic number, because the mean of its divisors is an integer number (39547200).

Almost surely, 2^405227244 is an apocalyptic number.

It is an amenable number.

405227244 is an abundant number, since it is smaller than the sum of its proper divisors (543905556).

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

405227244 is a wasteful number, since it uses less digits than its factorization.

405227244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128669 (or 128667 counting only the distinct ones).

The product of its (nonzero) digits is 17920, while the sum is 30.

The square root of 405227244 is about 20130.2569283156. The cubic root of 405227244 is about 740.0019746721.

Adding to 405227244 its reverse (442722504), we get a palindrome (847949748).

The spelling of 405227244 in words is "four hundred five million, two hundred twenty-seven thousand, two hundred forty-four".