1000404522 has 24 divisors (see below), whose sum is σ = 2334277764. Its totient is φ = 307816704.

The previous prime is 1000404497. The next prime is 1000404539. The reversal of 1000404522 is 2254040001.

1000404522 is a `hidden beast` number, since 100 + 0 + 40 + 4 + 522 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 734355801 + 266048721 = 27099^2 + 16311^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 1000404495 and 1000404504.

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, 2137383 + ... + 2137850.

Almost surely, 2^1000404522 is an apocalyptic number.

1000404522 is an abundant number, since it is smaller than the sum of its proper divisors (1333873242).

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

1000404522 is a wasteful number, since it uses less digits than its factorization.

1000404522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4275254 (or 4275251 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

The square root of 1000404522 is about 31629.1720093966. The cubic root of 1000404522 is about 1000.1348224887.

Adding to 1000404522 its reverse (2254040001), we get a palindrome (3254444523).

The spelling of 1000404522 in words is "one billion, four hundred four thousand, five hundred twenty-two".