40320344130 has 64 divisors (see below), whose sum is σ = 107557849728. Its totient is φ = 9590197760.

The previous prime is 40320344041. The next prime is 40320344131. The reversal of 40320344130 is 3144302304.

It is a self number, because there is not a number n which added to its sum of digits gives 40320344130.

It is not an unprimeable number, because it can be changed into a prime (40320344131) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1135179 + ... + 1170158.

It is an arithmetic number, because the mean of its divisors is an integer number (1680591402).

Almost surely, 2^40320344130 is an apocalyptic number.

40320344130 is an abundant number, since it is smaller than the sum of its proper divisors (67237505598).

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

40320344130 is a wasteful number, since it uses less digits than its factorization.

40320344130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2305411.

The product of its (nonzero) digits is 3456, while the sum is 24.

Adding to 40320344130 its reverse (3144302304), we get a palindrome (43464646434).

The spelling of 40320344130 in words is "forty billion, three hundred twenty million, three hundred forty-four thousand, one hundred thirty".