1345405266 has 24 divisors (see below), whose sum is σ = 2950169040. Its totient is φ = 443064696.

The previous prime is 1345405247. The next prime is 1345405289. The reversal of 1345405266 is 6625045431.

1345405266 is a `hidden beast` number, since 1 + 3 + 4 + 540 + 52 + 66 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 1345405266.

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, 448776 + ... + 451763.

It is an arithmetic number, because the mean of its divisors is an integer number (122923710).

Almost surely, 2^1345405266 is an apocalyptic number.

1345405266 is an abundant number, since it is smaller than the sum of its proper divisors (1604763774).

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

1345405266 is a wasteful number, since it uses less digits than its factorization.

1345405266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 900630 (or 900627 counting only the distinct ones).

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

The square root of 1345405266 is about 36679.7664387329. The cubic root of 1345405266 is about 1103.9541618098.

The spelling of 1345405266 in words is "one billion, three hundred forty-five million, four hundred five thousand, two hundred sixty-six".