1270842445 has 16 divisors (see below), whose sum is σ = 1548328320. Its totient is φ = 1001242944.

The previous prime is 1270842439. The next prime is 1270842467. The reversal of 1270842445 is 5442480721.

It is a cyclic number.

It is not a de Polignac number, because 1270842445 - 2⁵ = 1270842413 is a prime.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 84034 + ... + 97996.

It is an arithmetic number, because the mean of its divisors is an integer number (96770520).

Almost surely, 2^1270842445 is an apocalyptic number.

It is an amenable number.

1270842445 is a deficient number, since it is larger than the sum of its proper divisors (277485875).

1270842445 is a wasteful number, since it uses less digits than its factorization.

1270842445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14244.

The product of its (nonzero) digits is 71680, while the sum is 37.

The square root of 1270842445 is about 35648.8771912945. The cubic root of 1270842445 is about 1083.1715315486.

The spelling of 1270842445 in words is "one billion, two hundred seventy million, eight hundred forty-two thousand, four hundred forty-five".