1272756 has 36 divisors (see below), whose sum is σ = 3163328. Its totient is φ = 398208.

The previous prime is 1272749. The next prime is 1272811. The reversal of 1272756 is 6572721.

1272756 is nontrivially palindromic in base 8.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3285 + ... + 3651.

2^1272756 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1272756, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1581664).

1272756 is an abundant number, since it is smaller than the sum of its proper divisors (1890572).

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

1272756 is a wasteful number, since it uses less digits than its factorization.

1272756 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 408 (or 389 counting only the distinct ones).

The product of its digits is 5880, while the sum is 30.

The square root of 1272756 is about 1128.1648815665. The cubic root of 1272756 is about 108.3714916204.

The spelling of 1272756 in words is "one million, two hundred seventy-two thousand, seven hundred fifty-six".