40252512 has 24 divisors (see below), whose sum is σ = 105663096. Its totient is φ = 13417472.

The previous prime is 40252483. The next prime is 40252517. The reversal of 40252512 is 21525204.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40252517) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 209553 + ... + 209744.

It is an arithmetic number, because the mean of its divisors is an integer number (4402629).

Almost surely, 2^40252512 is an apocalyptic number.

It is an amenable number.

40252512 is an abundant number, since it is smaller than the sum of its proper divisors (65410584).

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

40252512 is a wasteful number, since it uses less digits than its factorization.

40252512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 419310 (or 419302 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 21.

The square root of 40252512 is about 6344.4867404700. The cubic root of 40252512 is about 342.7133293675.

Adding to 40252512 its reverse (21525204), we get a palindrome (61777716).

The spelling of 40252512 in words is "forty million, two hundred fifty-two thousand, five hundred twelve".