40253312 has 96 divisors (see below), whose sum is σ = 92791440. Its totient is φ = 17346560.

The previous prime is 40253303. The next prime is 40253347. The reversal of 40253312 is 21335204.

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 (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 356168 + ... + 356280.

Almost surely, 2^40253312 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 40253312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46395720).

40253312 is an abundant number, since it is smaller than the sum of its proper divisors (52538128).

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

40253312 is a wasteful number, since it uses less digits than its factorization.

40253312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172 (or 149 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 40253312 is about 6344.5497870219. The cubic root of 40253312 is about 342.7155997753.

Adding to 40253312 its reverse (21335204), we get a palindrome (61588516).

It can be divided in two parts, 4025 and 3312, that added together give a palindrome (7337).

The spelling of 40253312 in words is "forty million, two hundred fifty-three thousand, three hundred twelve".