40112532 has 36 divisors (see below), whose sum is σ = 101657556. Its totient is φ = 13336320.

The previous prime is 40112521. The next prime is 40112533. The reversal of 40112532 is 23521104.

It can be written as a sum of positive squares in 2 ways, for example, as 28579716 + 11532816 = 5346^2 + 3396^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40112533) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15388 + ... + 17804.

It is an arithmetic number, because the mean of its divisors is an integer number (2823821).

Almost surely, 2^40112532 is an apocalyptic number.

It is an amenable number.

40112532 is an abundant number, since it is smaller than the sum of its proper divisors (61545024).

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

40112532 is a wasteful number, since it uses less digits than its factorization.

40112532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2888 (or 2883 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 40112532 is about 6333.4455077785. The cubic root of 40112532 is about 342.3156007405.

Adding to 40112532 its reverse (23521104), we get a palindrome (63633636).

The spelling of 40112532 in words is "forty million, one hundred twelve thousand, five hundred thirty-two".