405221368460 has 12 divisors (see below), whose sum is σ = 850964873808. Its totient is φ = 162088547376.

The previous prime is 405221368439. The next prime is 405221368463. The reversal of 405221368460 is 64863122504.

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (405221368463) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10130534192 + ... + 10130534231.

It is an arithmetic number, because the mean of its divisors is an integer number (70913739484).

Almost surely, 2^405221368460 is an apocalyptic number.

It is an amenable number.

405221368460 is an abundant number, since it is smaller than the sum of its proper divisors (445743505348).

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

405221368460 is a wasteful number, since it uses less digits than its factorization.

405221368460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20261068432 (or 20261068430 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 41.

The spelling of 405221368460 in words is "four hundred five billion, two hundred twenty-one million, three hundred sixty-eight thousand, four hundred sixty".