1280973434 has 16 divisors (see below), whose sum is σ = 2070257280. Its totient is φ = 590934960.

The previous prime is 1280973433. The next prime is 1280973451. The reversal of 1280973434 is 4343790821.

It is a super-2 number, since 2×1280973434² = 3281785877227504712, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1280973391 and 1280973400.

It is not an unprimeable number, because it can be changed into a prime (1280973433) 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, 49427 + ... + 70745.

It is an arithmetic number, because the mean of its divisors is an integer number (129391080).

Almost surely, 2^1280973434 is an apocalyptic number.

1280973434 is a deficient number, since it is larger than the sum of its proper divisors (789283846).

1280973434 is a wasteful number, since it uses less digits than its factorization.

1280973434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23645.

The product of its (nonzero) digits is 145152, while the sum is 41.

The square root of 1280973434 is about 35790.6892082284. The cubic root of 1280973434 is about 1086.0422171443.

The spelling of 1280973434 in words is "one billion, two hundred eighty million, nine hundred seventy-three thousand, four hundred thirty-four".