405122244 has 24 divisors (see below), whose sum is σ = 946672608. Its totient is φ = 134842560.

The previous prime is 405122243. The next prime is 405122251. The reversal of 405122244 is 442221504.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (405122243) 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, 16137 + ... + 32720.

It is an arithmetic number, because the mean of its divisors is an integer number (39444692).

Almost surely, 2^405122244 is an apocalyptic number.

It is an amenable number.

405122244 is an abundant number, since it is smaller than the sum of its proper divisors (541550364).

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

405122244 is a wasteful number, since it uses less digits than its factorization.

405122244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49555 (or 49553 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 24.

The square root of 405122244 is about 20127.6487449478. The cubic root of 405122244 is about 739.9380542254.

Adding to 405122244 its reverse (442221504), we get a palindrome (847343748).

The spelling of 405122244 in words is "four hundred five million, one hundred twenty-two thousand, two hundred forty-four".