40008252 has 24 divisors (see below), whose sum is σ = 93490432. Its totient is φ = 13316400.

The previous prime is 40008223. The next prime is 40008277. The reversal of 40008252 is 25280004.

40008252 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 7677 + ... + 11787.

Almost surely, 2^40008252 is an apocalyptic number.

It is an amenable number.

40008252 is an abundant number, since it is smaller than the sum of its proper divisors (53482180).

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

40008252 is a wasteful number, since it uses less digits than its factorization.

40008252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4929 (or 4927 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 40008252 is about 6325.2076645751. The cubic root of 40008252 is about 342.0187055875.

Adding to 40008252 its reverse (25280004), we get a palindrome (65288256).

The spelling of 40008252 in words is "forty million, eight thousand, two hundred fifty-two".