40032252 has 48 divisors (see below), whose sum is σ = 111774880. Its totient is φ = 12317184.

The previous prime is 40032247. The next prime is 40032271. The reversal of 40032252 is 25223004.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12853 + ... + 15660.

Almost surely, 2^40032252 is an apocalyptic number.

It is an amenable number.

40032252 is an abundant number, since it is smaller than the sum of its proper divisors (71742628).

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

40032252 is a wasteful number, since it uses less digits than its factorization.

40032252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28539 (or 28531 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 18.

The square root of 40032252 is about 6327.1045510565. The cubic root of 40032252 is about 342.0870815493.

Adding to 40032252 its reverse (25223004), we get a palindrome (65255256).

The spelling of 40032252 in words is "forty million, thirty-two thousand, two hundred fifty-two".