1122025440 has 48 divisors (see below), whose sum is σ = 3534381648. Its totient is φ = 299206656.

The previous prime is 1122025427. The next prime is 1122025441. The reversal of 1122025440 is 445202211.

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1122025441) 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, 1168297 + ... + 1169256.

It is an arithmetic number, because the mean of its divisors is an integer number (73632951).

Almost surely, 2^1122025440 is an apocalyptic number.

1122025440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1122025440 is an abundant number, since it is smaller than the sum of its proper divisors (2412356208).

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

1122025440 is a wasteful number, since it uses less digits than its factorization.

1122025440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2337571 (or 2337563 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 1122025440 is about 33496.6481905280. The cubic root of 1122025440 is about 1039.1244603593.

Adding to 1122025440 its reverse (445202211), we get a palindrome (1567227651).

The spelling of 1122025440 in words is "one billion, one hundred twenty-two million, twenty-five thousand, four hundred forty".