40333312 has 52 divisors (see below), whose sum is σ = 82892920. Its totient is φ = 19611648.

The previous prime is 40333309. The next prime is 40333313. The reversal of 40333312 is 21333304.

It is a self number, because there is not a number n which added to its sum of digits gives 40333312.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40333313) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 176014 + ... + 176242.

Almost surely, 2^40333312 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 40333312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41446460).

40333312 is an abundant number, since it is smaller than the sum of its proper divisors (42559608).

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

40333312 is an equidigital number, since it uses as much as digits as its factorization.

40333312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 296 (or 274 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 19.

The square root of 40333312 is about 6350.8512815212. The cubic root of 40333312 is about 342.9424888063.

Adding to 40333312 its reverse (21333304), we get a palindrome (61666616).

The spelling of 40333312 in words is "forty million, three hundred thirty-three thousand, three hundred twelve".