40052130 has 32 divisors (see below), whose sum is σ = 98725824. Its totient is φ = 10391616.

The previous prime is 40052123. The next prime is 40052137. The reversal of 40052130 is 3125004.

It is an interprime number because it is at equal distance from previous prime (40052123) and next prime (40052137).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (40052137) 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 15 ways as a sum of consecutive naturals, for example, 16932 + ... + 19151.

It is an arithmetic number, because the mean of its divisors is an integer number (3085182).

Almost surely, 2^40052130 is an apocalyptic number.

40052130 is an abundant number, since it is smaller than the sum of its proper divisors (58673694).

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

40052130 is a wasteful number, since it uses less digits than its factorization.

40052130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36130.

The product of its (nonzero) digits is 120, while the sum is 15.

The square root of 40052130 is about 6328.6752168207. The cubic root of 40052130 is about 342.1436932516.

Adding to 40052130 its reverse (3125004), we get a palindrome (43177134).

The spelling of 40052130 in words is "forty million, fifty-two thousand, one hundred thirty".