40112320 has 56 divisors (see below), whose sum is σ = 96524064. Its totient is φ = 15876096.

The previous prime is 40112279. The next prime is 40112339. The reversal of 40112320 is 2321104.

It is a self number, because there is not a number n which added to its sum of digits gives 40112320.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32352 + ... + 33568.

It is an arithmetic number, because the mean of its divisors is an integer number (1723644).

Almost surely, 2^40112320 is an apocalyptic number.

40112320 is a gapful number since it is divisible by the number (40) 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 40112320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48262032).

40112320 is an abundant number, since it is smaller than the sum of its proper divisors (56411744).

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

40112320 is a wasteful number, since it uses less digits than its factorization.

40112320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1337 (or 1327 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 40112320 is about 6333.4287712107. The cubic root of 40112320 is about 342.3149976785.

Adding to 40112320 its reverse (2321104), we get a palindrome (42433424).

It can be divided in two parts, 401 and 12320, that added together give a palindrome (12721).

The spelling of 40112320 in words is "forty million, one hundred twelve thousand, three hundred twenty".