405244001022 has 16 divisors (see below), whose sum is σ = 926272002432. Its totient is φ = 115784000280.

The previous prime is 405244001011. The next prime is 405244001119. The reversal of 405244001022 is 220100442504.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 405244000983 and 405244001001.

It is a congruent number.

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, 4824333304 + ... + 4824333387.

It is an arithmetic number, because the mean of its divisors is an integer number (57892000152).

Almost surely, 2^405244001022 is an apocalyptic number.

405244001022 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

405244001022 is an abundant number, since it is smaller than the sum of its proper divisors (521028001410).

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

405244001022 is a wasteful number, since it uses less digits than its factorization.

405244001022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9648666703.

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

Adding to 405244001022 its reverse (220100442504), we get a palindrome (625344443526).

The spelling of 405244001022 in words is "four hundred five billion, two hundred forty-four million, one thousand, twenty-two".