40115020 has 24 divisors (see below), whose sum is σ = 91900368. Its totient is φ = 14587200.

The previous prime is 40114981. The next prime is 40115039. The reversal of 40115020 is 2051104.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 90951 + ... + 91390.

It is an arithmetic number, because the mean of its divisors is an integer number (3829182).

Almost surely, 2^40115020 is an apocalyptic number.

It is an amenable number.

40115020 is an abundant number, since it is smaller than the sum of its proper divisors (51785348).

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

40115020 is a wasteful number, since it uses less digits than its factorization.

40115020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182361 (or 182359 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 13.

The square root of 40115020 is about 6333.6419223066. The cubic root of 40115020 is about 342.3226780267.

Adding to 40115020 its reverse (2051104), we get a palindrome (42166124).

The spelling of 40115020 in words is "forty million, one hundred fifteen thousand, twenty".