112213640 has 64 divisors (see below), whose sum is σ = 314789760. Its totient is φ = 34974720.

The previous prime is 112213613. The next prime is 112213643. The reversal of 112213640 is 46312211.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is not an unprimeable number, because it can be changed into a prime (112213643) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15137 + ... + 21296.

It is an arithmetic number, because the mean of its divisors is an integer number (4918590).

Almost surely, 2^112213640 is an apocalyptic number.

112213640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

112213640 is an abundant number, since it is smaller than the sum of its proper divisors (202576120).

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

112213640 is a wasteful number, since it uses less digits than its factorization.

112213640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36462 (or 36458 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 112213640 is about 10593.0939767379. The cubic root of 112213640 is about 482.3347479228.

Adding to 112213640 its reverse (46312211), we get a palindrome (158525851).

The spelling of 112213640 in words is "one hundred twelve million, two hundred thirteen thousand, six hundred forty".