112420872 has 160 divisors (see below), whose sum is σ = 346737600. Its totient is φ = 33872256.

The previous prime is 112420831. The next prime is 112420873. The reversal of 112420872 is 278024211.

112420872 = T₃ + T₄ + ... + T₈₇₆.

It is a super-2 number, since 2×112420872² = 25276904922480768, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (112420873) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 282978 + ... + 283374.

It is an arithmetic number, because the mean of its divisors is an integer number (2167110).

Almost surely, 2^112420872 is an apocalyptic number.

112420872 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 112420872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (173368800).

112420872 is an abundant number, since it is smaller than the sum of its proper divisors (234316728).

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

112420872 is a wasteful number, since it uses less digits than its factorization.

112420872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 457 (or 444 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 27.

The square root of 112420872 is about 10602.8709319693. The cubic root of 112420872 is about 482.6314846545.

The spelling of 112420872 in words is "one hundred twelve million, four hundred twenty thousand, eight hundred seventy-two".