40541130 has 144 divisors (see below), whose sum is σ = 127244520. Its totient is φ = 8918784.

The previous prime is 40541129. The next prime is 40541143. The reversal of 40541130 is 3114504.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 22724289 + 17816841 = 4767^2 + 4221^2 .

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 127732 + ... + 128048.

Almost surely, 2^40541130 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40541130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63622260).

40541130 is an abundant number, since it is smaller than the sum of its proper divisors (86703390).

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

40541130 is a wasteful number, since it uses less digits than its factorization.

40541130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 373 (or 363 counting only the distinct ones).

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

The square root of 40541130 is about 6367.1916886489. The cubic root of 40541130 is about 343.5304855256.

Adding to 40541130 its reverse (3114504), we get a palindrome (43655634).

It can be divided in two parts, 4054 and 1130, that added together give a square (5184 = 72²).

The spelling of 40541130 in words is "forty million, five hundred forty-one thousand, one hundred thirty".