1122170400 has 432 divisors, whose sum is σ = 4492837440. Its totient is φ = 261273600.

The previous prime is 1122170393. The next prime is 1122170443. The reversal of 1122170400 is 40712211.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 1778085 + ... + 1778715.

Almost surely, 2^1122170400 is an apocalyptic number.

1122170400 is a gapful number since it is divisible by the number (10) 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 1122170400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2246418720).

1122170400 is an abundant number, since it is smaller than the sum of its proper divisors (3370667040).

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

1122170400 is a wasteful number, since it uses less digits than its factorization.

1122170400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 689 (or 673 counting only the distinct ones).

The product of its (nonzero) digits is 112, while the sum is 18.

The square root of 1122170400 is about 33498.8119192308. The cubic root of 1122170400 is about 1039.1692083035.

Adding to 1122170400 its reverse (40712211), we get a palindrome (1162882611).

The spelling of 1122170400 in words is "one billion, one hundred twenty-two million, one hundred seventy thousand, four hundred".