1270530 has 48 divisors (see below), whose sum is σ = 3481920. Its totient is φ = 320544.

The previous prime is 1270513. The next prime is 1270531. The reversal of 1270530 is 350721.

It is a super-2 number, since 2×1270530² = 3228492961800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1270531) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1339 + ... + 2081.

It is an arithmetic number, because the mean of its divisors is an integer number (72540).

2^1270530 is an apocalyptic number.

1270530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1270530, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1740960).

1270530 is an abundant number, since it is smaller than the sum of its proper divisors (2211390).

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

1270530 is a wasteful number, since it uses less digits than its factorization.

1270530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 775 (or 772 counting only the distinct ones).

The product of its (nonzero) digits is 210, while the sum is 18.

The square root of 1270530 is about 1127.1778919053. The cubic root of 1270530 is about 108.3082755984.

The spelling of 1270530 in words is "one million, two hundred seventy thousand, five hundred thirty".