40641130 has 8 divisors (see below), whose sum is σ = 73154052. Its totient is φ = 16256448.

The previous prime is 40641109. The next prime is 40641137. The reversal of 40641130 is 3114604.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 32569849 + 8071281 = 5707^2 + 2841^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 40641098 and 40641107.

It is not an unprimeable number, because it can be changed into a prime (40641137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2032047 + ... + 2032066.

Almost surely, 2^40641130 is an apocalyptic number.

40641130 is a deficient number, since it is larger than the sum of its proper divisors (32512922).

40641130 is a wasteful number, since it uses less digits than its factorization.

40641130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4064120.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 40641130 is about 6375.0396077201. The cubic root of 40641130 is about 343.8127078988.

Adding to 40641130 its reverse (3114604), we get a palindrome (43755734).

The spelling of 40641130 in words is "forty million, six hundred forty-one thousand, one hundred thirty".