1122569472 has 72 divisors (see below), whose sum is σ = 3028750144. Its totient is φ = 369045504.

The previous prime is 1122569467. The next prime is 1122569473. The reversal of 1122569472 is 2749652211.

It is a self number, because there is not a number n which added to its sum of digits gives 1122569472.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1122569473) 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, 46053 + ... + 66075.

Almost surely, 2^1122569472 is an apocalyptic number.

1122569472 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 1122569472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1514375072).

1122569472 is an abundant number, since it is smaller than the sum of its proper divisors (1906180672).

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

1122569472 is an equidigital number, since it uses as much as digits as its factorization.

1122569472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20115 (or 20101 counting only the distinct ones).

The product of its digits is 60480, while the sum is 39.

The square root of 1122569472 is about 33504.7678995095. The cubic root of 1122569472 is about 1039.2923786005.

The spelling of 1122569472 in words is "one billion, one hundred twenty-two million, five hundred sixty-nine thousand, four hundred seventy-two".