1225260 has 48 divisors (see below), whose sum is σ = 3813600. Its totient is φ = 326592.

The previous prime is 1225223. The next prime is 1225261. The reversal of 1225260 is 625221.

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

It is not an unprimeable number, because it can be changed into a prime (1225261) 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, 595 + ... + 1674.

It is an arithmetic number, because the mean of its divisors is an integer number (79450).

2^1225260 is an apocalyptic number.

1225260 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1225260 is an abundant number, since it is smaller than the sum of its proper divisors (2588340).

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

1225260 is a wasteful number, since it uses less digits than its factorization.

1225260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2287 (or 2279 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 1225260 is about 1106.9146308546. The cubic root of 1225260 is about 107.0063175005.

It can be divided in two parts, 1225 and 260, that added together give a triangular number (1485 = T₅₄).

The spelling of 1225260 in words is "one million, two hundred twenty-five thousand, two hundred sixty".