40105512 has 24 divisors (see below), whose sum is σ = 108619290. Its totient is φ = 13368480.

The previous prime is 40105489. The next prime is 40105553. The reversal of 40105512 is 21550104.

40105512 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 31069476 + 9036036 = 5574^2 + 3006^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 278439 + ... + 278582.

Almost surely, 2^40105512 is an apocalyptic number.

It is an amenable number.

40105512 is an abundant number, since it is smaller than the sum of its proper divisors (68513778).

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

40105512 is a wasteful number, since it uses less digits than its factorization.

40105512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 557033 (or 557026 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 18.

The square root of 40105512 is about 6332.8912828186. The cubic root of 40105512 is about 342.2956302924.

Adding to 40105512 its reverse (21550104), we get a palindrome (61655616).

The spelling of 40105512 in words is "forty million, one hundred five thousand, five hundred twelve".