1225392 has 60 divisors (see below), whose sum is σ = 3689496. Its totient is φ = 349440.

The previous prime is 1225381. The next prime is 1225397. The reversal of 1225392 is 2935221.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (1225397) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2092 + ... + 2612.

2^1225392 is an apocalyptic number.

1225392 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1225392, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1844748).

1225392 is an abundant number, since it is smaller than the sum of its proper divisors (2464104).

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

1225392 is a wasteful number, since it uses less digits than its factorization.

1225392 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 546 (or 533 counting only the distinct ones).

The product of its digits is 1080, while the sum is 24.

The square root of 1225392 is about 1106.9742544432. The cubic root of 1225392 is about 107.0101600391.

It can be divided in two parts, 12 and 25392, that multiplied together give a square (304704 = 552²).

The spelling of 1225392 in words is "one million, two hundred twenty-five thousand, three hundred ninety-two".