1272456 has 64 divisors (see below), whose sum is σ = 3643200. Its totient is φ = 411264.

The previous prime is 1272451. The next prime is 1272461. The reversal of 1272456 is 6542721.

It is an interprime number because it is at equal distance from previous prime (1272451) and next prime (1272461).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1272451) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9220 + ... + 9356.

It is an arithmetic number, because the mean of its divisors is an integer number (56925).

2^1272456 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 1272456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1821600).

1272456 is an abundant number, since it is smaller than the sum of its proper divisors (2370744).

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

1272456 is a wasteful number, since it uses less digits than its factorization.

1272456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195 (or 185 counting only the distinct ones).

The product of its digits is 3360, while the sum is 27.

The square root of 1272456 is about 1128.0319144421. The cubic root of 1272456 is about 108.3629762406.

It can be divided in two parts, 1272 and 456, that added together give a cube (1728 = 12³).

The spelling of 1272456 in words is "one million, two hundred seventy-two thousand, four hundred fifty-six".