1270566 has 80 divisors (see below), whose sum is σ = 3345408. Its totient is φ = 356400.

The previous prime is 1270561. The next prime is 1270567. The reversal of 1270566 is 6650721.

It is a super-2 number, since 2×1270566² = 3228675920712, which contains 22 as substring.

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 (1270561) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 40971 + ... + 41001.

2^1270566 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1270566, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1672704).

1270566 is an abundant number, since it is smaller than the sum of its proper divisors (2074842).

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

1270566 is a wasteful number, since it uses less digits than its factorization.

1270566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79 (or 70 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 27.

The square root of 1270566 is about 1127.1938608775. The cubic root of 1270566 is about 108.3092985471.

The spelling of 1270566 in words is "one million, two hundred seventy thousand, five hundred sixty-six".