4000000252 has 24 divisors (see below), whose sum is σ = 7169095136. Its totient is φ = 1952252928.

The previous prime is 4000000241. The next prime is 4000000273. The reversal of 4000000252 is 2520000004.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42288 + ... + 98935.

Almost surely, 2^4000000252 is an apocalyptic number.

It is an amenable number.

4000000252 is a deficient number, since it is larger than the sum of its proper divisors (3169094884).

4000000252 is a wasteful number, since it uses less digits than its factorization.

4000000252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141397 (or 141395 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 13.

The square root of 4000000252 is about 63245.5551956025. Note that the first 3 decimals coincide. The cubic root of 4000000252 is about 1587.4010853036.

Adding to 4000000252 its reverse (2520000004), we get a palindrome (6520000256).

The spelling of 4000000252 in words is "four billion, two hundred fifty-two", and thus it is an aban number.