40032253 has 8 divisors (see below), whose sum is σ = 41543936. Its totient is φ = 38534400.

The previous prime is 40032247. The next prime is 40032271. The reversal of 40032253 is 35223004.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 40032253 - 2⁹ = 40031741 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 40032253.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40032053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2638 + ... + 9328.

It is an arithmetic number, because the mean of its divisors is an integer number (5192992).

Almost surely, 2^40032253 is an apocalyptic number.

It is an amenable number.

40032253 is a deficient number, since it is larger than the sum of its proper divisors (1511683).

40032253 is a wasteful number, since it uses less digits than its factorization.

40032253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6915.

The product of its (nonzero) digits is 720, while the sum is 19.

The square root of 40032253 is about 6327.1046300816. The cubic root of 40032253 is about 342.0870843977.

Adding to 40032253 its reverse (35223004), we get a palindrome (75255257).

Subtracting from 40032253 its reverse (35223004), we obtain a square (4809249 = 2193²).

The spelling of 40032253 in words is "forty million, thirty-two thousand, two hundred fifty-three".