405223444412 has 12 divisors (see below), whose sum is σ = 709146743760. Its totient is φ = 202610089056.

The previous prime is 405223444393. The next prime is 405223444499. The reversal of 405223444412 is 214444322504.

It is a super-2 number, since 2×405223444412² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 278264 + ... + 942272.

It is an arithmetic number, because the mean of its divisors is an integer number (59095561980).

Almost surely, 2^405223444412 is an apocalyptic number.

It is an amenable number.

405223444412 is a deficient number, since it is larger than the sum of its proper divisors (303923299348).

405223444412 is a wasteful number, since it uses less digits than its factorization.

405223444412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 816580 (or 816578 counting only the distinct ones).

The product of its (nonzero) digits is 122880, while the sum is 35.

Adding to 405223444412 its reverse (214444322504), we get a palindrome (619667766916).

The spelling of 405223444412 in words is "four hundred five billion, two hundred twenty-three million, four hundred forty-four thousand, four hundred twelve".