40534312 has 48 divisors (see below), whose sum is σ = 94076640. Its totient is φ = 16031808.

The previous prime is 40534309. The next prime is 40534313. The reversal of 40534312 is 21343504.

It is not an unprimeable number, because it can be changed into a prime (40534313) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7323 + ... + 11605.

It is an arithmetic number, because the mean of its divisors is an integer number (1959930).

Almost surely, 2^40534312 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 40534312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47038320).

40534312 is an abundant number, since it is smaller than the sum of its proper divisors (53542328).

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

40534312 is a wasteful number, since it uses less digits than its factorization.

40534312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4322 (or 4305 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 40534312 is about 6366.6562652620. The cubic root of 40534312 is about 343.5112267122.

Adding to 40534312 its reverse (21343504), we get a palindrome (61877816).

The spelling of 40534312 in words is "forty million, five hundred thirty-four thousand, three hundred twelve".