1112209452 has 72 divisors (see below), whose sum is σ = 2872213344. Its totient is φ = 362758656.

The previous prime is 1112209451. The next prime is 1112209453. The reversal of 1112209452 is 2549022111.

1112209452 is a `hidden beast` number, since 1 + 1 + 1 + 2 + 209 + 452 = 666.

It is an interprime number because it is at equal distance from previous prime (1112209451) and next prime (1112209453).

It is not an unprimeable number, because it can be changed into a prime (1112209451) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 1130953 + ... + 1131935.

It is an arithmetic number, because the mean of its divisors is an integer number (39891852).

Almost surely, 2^1112209452 is an apocalyptic number.

1112209452 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 1112209452, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1436106672).

1112209452 is an abundant number, since it is smaller than the sum of its proper divisors (1760003892).

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

1112209452 is a wasteful number, since it uses less digits than its factorization.

1112209452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1639 (or 1634 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

The square root of 1112209452 is about 33349.8043772374. The cubic root of 1112209452 is about 1036.0853363117.

The spelling of 1112209452 in words is "one billion, one hundred twelve million, two hundred nine thousand, four hundred fifty-two".