1267045442 has 16 divisors (see below), whose sum is σ = 2077317312. Its totient is φ = 576061200.

The previous prime is 1267045433. The next prime is 1267045447. The reversal of 1267045442 is 2445407621.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1267045447) 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, 361934 + ... + 365417.

It is an arithmetic number, because the mean of its divisors is an integer number (129832332).

Almost surely, 2^1267045442 is an apocalyptic number.

1267045442 is a deficient number, since it is larger than the sum of its proper divisors (810271870).

1267045442 is a wasteful number, since it uses less digits than its factorization.

1267045442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 727433.

The product of its (nonzero) digits is 53760, while the sum is 35.

The square root of 1267045442 is about 35595.5817763947. The cubic root of 1267045442 is about 1082.0916944578.

The spelling of 1267045442 in words is "one billion, two hundred sixty-seven million, forty-five thousand, four hundred forty-two".