1225576 has 32 divisors (see below), whose sum is σ = 2642400. Its totient is φ = 527040.

The previous prime is 1225571. The next prime is 1225577. The reversal of 1225576 is 6755221.

It is not an unprimeable number, because it can be changed into a prime (1225571) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1306 + ... + 2038.

It is an arithmetic number, because the mean of its divisors is an integer number (82575).

2^1225576 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 1225576, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1321200).

1225576 is an abundant number, since it is smaller than the sum of its proper divisors (1416824).

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

1225576 is a wasteful number, since it uses less digits than its factorization.

1225576 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 769 (or 765 counting only the distinct ones).

The product of its digits is 4200, while the sum is 28.

The square root of 1225576 is about 1107.0573607542. The cubic root of 1225576 is about 107.0155158447.

It can be divided in two parts, 1225 and 576, that multiplied together give a square (705600 = 840²).

The spelling of 1225576 in words is "one million, two hundred twenty-five thousand, five hundred seventy-six".