40515252 has 12 divisors (see below), whose sum is σ = 94535616. Its totient is φ = 13505080.

The previous prime is 40515247. The next prime is 40515253. The reversal of 40515252 is 25251504.

It is a happy number.

40515252 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40515253) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 1688124 + ... + 1688147.

It is an arithmetic number, because the mean of its divisors is an integer number (7877968).

Almost surely, 2^40515252 is an apocalyptic number.

It is an amenable number.

40515252 is an abundant number, since it is smaller than the sum of its proper divisors (54020364).

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

40515252 is a wasteful number, since it uses less digits than its factorization.

40515252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3376278 (or 3376276 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 24.

The square root of 40515252 is about 6365.1592281733. The cubic root of 40515252 is about 343.4573764460.

Adding to 40515252 its reverse (25251504), we get a palindrome (65766756).

The spelling of 40515252 in words is "forty million, five hundred fifteen thousand, two hundred fifty-two".