40002252 has 48 divisors (see below), whose sum is σ = 97977600. Its totient is φ = 12685120.

The previous prime is 40002251. The next prime is 40002253. The reversal of 40002252 is 25220004.

It is an interprime number because it is at equal distance from previous prime (40002251) and next prime (40002253).

It is not an unprimeable number, because it can be changed into a prime (40002251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23899 + ... + 25517.

It is an arithmetic number, because the mean of its divisors is an integer number (2041200).

Almost surely, 2^40002252 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40002252, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48988800).

40002252 is an abundant number, since it is smaller than the sum of its proper divisors (57975348).

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

40002252 is a wasteful number, since it uses less digits than its factorization.

40002252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1726 (or 1724 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 15.

The square root of 40002252 is about 6324.7333540632. The cubic root of 40002252 is about 342.0016073246.

Adding to 40002252 its reverse (25220004), we get a palindrome (65222256).

The spelling of 40002252 in words is "forty million, two thousand, two hundred fifty-two".