1276222442 has 32 divisors (see below), whose sum is σ = 2137544640. Its totient is φ = 566600320.

The previous prime is 1276222439. The next prime is 1276222469. The reversal of 1276222442 is 2442226721.

It is a junction number, because it is equal to n+sod(n) for n = 1276222399 and 1276222408.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 158588 + ... + 166440.

It is an arithmetic number, because the mean of its divisors is an integer number (66798270).

Almost surely, 2^1276222442 is an apocalyptic number.

1276222442 is a deficient number, since it is larger than the sum of its proper divisors (861322198).

1276222442 is a wasteful number, since it uses less digits than its factorization.

1276222442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8038.

The product of its digits is 21504, while the sum is 32.

The square root of 1276222442 is about 35724.2556535472. The cubic root of 1276222442 is about 1084.6978827123.

The spelling of 1276222442 in words is "one billion, two hundred seventy-six million, two hundred twenty-two thousand, four hundred forty-two".