1112400828 has 144 divisors (see below), whose sum is σ = 3690435840. Its totient is φ = 273715200.

The previous prime is 1112400827. The next prime is 1112400833. The reversal of 1112400828 is 8280042111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1112400823) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 42108 + ... + 63228.

Almost surely, 2^1112400828 is an apocalyptic number.

1112400828 is a gapful number since it is divisible by the number (18) 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 1112400828, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1845217920).

1112400828 is an abundant number, since it is smaller than the sum of its proper divisors (2578035012).

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

1112400828 is a wasteful number, since it uses less digits than its factorization.

1112400828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21168 (or 21163 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 27.

The square root of 1112400828 is about 33352.6734760499. The cubic root of 1112400828 is about 1036.1447587210.

Adding to 1112400828 its reverse (8280042111), we get a palindrome (9392442939).

The spelling of 1112400828 in words is "one billion, one hundred twelve million, four hundred thousand, eight hundred twenty-eight".