1005478122 has 16 divisors (see below), whose sum is σ = 2193770592. Its totient is φ = 304690320.

The previous prime is 1005478121. The next prime is 1005478127. The reversal of 1005478122 is 2218745001.

It is a self number, because there is not a number n which added to its sum of digits gives 1005478122.

It is not an unprimeable number, because it can be changed into a prime (1005478121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7617193 + ... + 7617324.

It is an arithmetic number, because the mean of its divisors is an integer number (137110662).

Almost surely, 2^1005478122 is an apocalyptic number.

1005478122 is an abundant number, since it is smaller than the sum of its proper divisors (1188292470).

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

1005478122 is a wasteful number, since it uses less digits than its factorization.

1005478122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15234533.

The product of its (nonzero) digits is 4480, while the sum is 30.

The square root of 1005478122 is about 31709.2750153642. The cubic root of 1005478122 is about 1001.8227163532.

The spelling of 1005478122 in words is "one billion, five million, four hundred seventy-eight thousand, one hundred twenty-two".