1267273340 has 12 divisors (see below), whose sum is σ = 2661274056. Its totient is φ = 506909328.

The previous prime is 1267273333. The next prime is 1267273363. The reversal of 1267273340 is 433727621.

It is a self number, because there is not a number n which added to its sum of digits gives 1267273340.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31681814 + ... + 31681853.

It is an arithmetic number, because the mean of its divisors is an integer number (221772838).

Almost surely, 2^1267273340 is an apocalyptic number.

1267273340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1267273340 is an abundant number, since it is smaller than the sum of its proper divisors (1394000716).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1267273340 is a wasteful number, since it uses less digits than its factorization.

1267273340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63363676 (or 63363674 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 35.

The square root of 1267273340 is about 35598.7828443614. The cubic root of 1267273340 is about 1082.1565676241.

The spelling of 1267273340 in words is "one billion, two hundred sixty-seven million, two hundred seventy-three thousand, three hundred forty".