1267256272 has 40 divisors (see below), whose sum is σ = 2490456672. Its totient is φ = 624624000.

The previous prime is 1267256267. The next prime is 1267256299. The reversal of 1267256272 is 2726527621.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 327147 + ... + 330997.

Almost surely, 2^1267256272 is an apocalyptic number.

It is an amenable number.

1267256272 is a deficient number, since it is larger than the sum of its proper divisors (1223200400).

1267256272 is a wasteful number, since it uses less digits than its factorization.

1267256272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4147 (or 4141 counting only the distinct ones).

The product of its digits is 141120, while the sum is 40.

The square root of 1267256272 is about 35598.5431162569. The cubic root of 1267256272 is about 1082.1517093375.

The spelling of 1267256272 in words is "one billion, two hundred sixty-seven million, two hundred fifty-six thousand, two hundred seventy-two".