405225522 has 24 divisors (see below), whose sum is σ = 945526764. Its totient is φ = 124684704.

The previous prime is 405225503. The next prime is 405225533. The reversal of 405225522 is 225522504.

405225522 is a `hidden beast` number, since 405 + 2 + 255 + 2 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 404854641 + 370881 = 20121^2 + 609^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 865633 + ... + 866100.

Almost surely, 2^405225522 is an apocalyptic number.

405225522 is an abundant number, since it is smaller than the sum of its proper divisors (540301242).

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

405225522 is a wasteful number, since it uses less digits than its factorization.

405225522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1731754 (or 1731751 counting only the distinct ones).

The product of its (nonzero) digits is 8000, while the sum is 27.

The square root of 405225522 is about 20130.2141568340. The cubic root of 405225522 is about 740.0009264658. Note that the first 3 decimals are identical.

The spelling of 405225522 in words is "four hundred five million, two hundred twenty-five thousand, five hundred twenty-two".