40341312 has 84 divisors (see below), whose sum is σ = 126162816. Its totient is φ = 12222720.

The previous prime is 40341299. The next prime is 40341317. The reversal of 40341312 is 21314304.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40341317) 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, 3153 + ... + 9519.

Almost surely, 2^40341312 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 40341312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63081408).

40341312 is an abundant number, since it is smaller than the sum of its proper divisors (85821504).

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

40341312 is a wasteful number, since it uses less digits than its factorization.

40341312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6396 (or 6383 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 40341312 is about 6351.4810871166. The cubic root of 40341312 is about 342.9651612030.

Adding to 40341312 its reverse (21314304), we get a palindrome (61655616).

The spelling of 40341312 in words is "forty million, three hundred forty-one thousand, three hundred twelve".