1306522074 has 128 divisors (see below), whose sum is σ = 3170119680. Its totient is φ = 353721600.

The previous prime is 1306522057. The next prime is 1306522093. The reversal of 1306522074 is 4702256031.

It is a super-2 number, since 2×1306522074² = 3413999859698522952, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 7218264 + ... + 7218444.

It is an arithmetic number, because the mean of its divisors is an integer number (24766560).

Almost surely, 2^1306522074 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1306522074, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1585059840).

1306522074 is an abundant number, since it is smaller than the sum of its proper divisors (1863597606).

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

1306522074 is a wasteful number, since it uses less digits than its factorization.

1306522074 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 436.

The product of its (nonzero) digits is 10080, while the sum is 30.

The square root of 1306522074 is about 36145.8444914488. The cubic root of 1306522074 is about 1093.2150046894.

The spelling of 1306522074 in words is "one billion, three hundred six million, five hundred twenty-two thousand, seventy-four".