1305465426 has 12 divisors (see below), whose sum is σ = 2828508462. Its totient is φ = 435155136.

The previous prime is 1305465401. The next prime is 1305465431. The reversal of 1305465426 is 6245645031.

It can be written as a sum of positive squares in only one way, i.e., 950180625 + 355284801 = 30825^2 + 18849^2 .

It is a super-2 number, since 2×1305465426² = 3408479956962722952, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 36262911 + ... + 36262946.

Almost surely, 2^1305465426 is an apocalyptic number.

1305465426 is an abundant number, since it is smaller than the sum of its proper divisors (1523043036).

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

1305465426 is a wasteful number, since it uses less digits than its factorization.

1305465426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72525865 (or 72525862 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 36.

The square root of 1305465426 is about 36131.2250830220. The cubic root of 1305465426 is about 1092.9202131411.

The spelling of 1305465426 in words is "one billion, three hundred five million, four hundred sixty-five thousand, four hundred twenty-six".