1122756400 has 60 divisors (see below), whose sum is σ = 2724227424. Its totient is φ = 444640000.

The previous prime is 1122756391. The next prime is 1122756403. The reversal of 1122756400 is 46572211.

It is not an unprimeable number, because it can be changed into a prime (1122756403) 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, 26505 + ... + 54295.

Almost surely, 2^1122756400 is an apocalyptic number.

1122756400 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 1122756400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1362113712).

1122756400 is an abundant number, since it is smaller than the sum of its proper divisors (1601471024).

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

1122756400 is a wasteful number, since it uses less digits than its factorization.

1122756400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27910 (or 27899 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 1122756400 is about 33507.5573565129. The cubic root of 1122756400 is about 1039.3500623544.

The spelling of 1122756400 in words is "one billion, one hundred twenty-two million, seven hundred fifty-six thousand, four hundred".