40321130 has 8 divisors (see below), whose sum is σ = 72578052. Its totient is φ = 16128448.

The previous prime is 40321129. The next prime is 40321133. The reversal of 40321130 is 3112304.

It can be written as a sum of positive squares in 2 ways, for example, as 36372961 + 3948169 = 6031^2 + 1987^2 .

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

It is not an unprimeable number, because it can be changed into a prime (40321133) 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, 2016047 + ... + 2016066.

Almost surely, 2^40321130 is an apocalyptic number.

40321130 is a deficient number, since it is larger than the sum of its proper divisors (32256922).

40321130 is a wasteful number, since it uses less digits than its factorization.

40321130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4032120.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 40321130 is about 6349.8921250680. The cubic root of 40321130 is about 342.9079586552.

Adding to 40321130 its reverse (3112304), we get a palindrome (43433434).

The spelling of 40321130 in words is "forty million, three hundred twenty-one thousand, one hundred thirty".