1267342984 has 8 divisors (see below), whose sum is σ = 2376268110. Its totient is φ = 633671488.

The previous prime is 1267342969. The next prime is 1267343017. The reversal of 1267342984 is 4892437621.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1242562500 + 24780484 = 35250^2 + 4978^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a hoax number, since the sum of its digits (46) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79208929 + ... + 79208944.

Almost surely, 2^1267342984 is an apocalyptic number.

It is an amenable number.

1267342984 is a deficient number, since it is larger than the sum of its proper divisors (1108925126).

1267342984 is a wasteful number, since it uses less digits than its factorization.

1267342984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158417879 (or 158417875 counting only the distinct ones).

The product of its digits is 580608, while the sum is 46.

The square root of 1267342984 is about 35599.7610104338. The cubic root of 1267342984 is about 1082.1763908486.

The spelling of 1267342984 in words is "one billion, two hundred sixty-seven million, three hundred forty-two thousand, nine hundred eighty-four".