40107732 has 48 divisors (see below), whose sum is σ = 109240320. Its totient is φ = 11214432.

The previous prime is 40107731. The next prime is 40107751. The reversal of 40107732 is 23770104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40107731) 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, 1132 + ... + 9027.

It is an arithmetic number, because the mean of its divisors is an integer number (2275840).

Almost surely, 2^40107732 is an apocalyptic number.

40107732 is a gapful number since it is divisible by the number (42) 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 40107732, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54620160).

40107732 is an abundant number, since it is smaller than the sum of its proper divisors (69132588).

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

40107732 is a wasteful number, since it uses less digits than its factorization.

40107732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10220 (or 10218 counting only the distinct ones).

The product of its (nonzero) digits is 1176, while the sum is 24.

The square root of 40107732 is about 6333.0665557848. The cubic root of 40107732 is about 342.3019459852.

Adding to 40107732 its reverse (23770104), we get a palindrome (63877836).

The spelling of 40107732 in words is "forty million, one hundred seven thousand, seven hundred thirty-two".