40340352 has 64 divisors (see below), whose sum is σ = 115410960. Its totient is φ = 12410880.

The previous prime is 40340347. The next prime is 40340357. The reversal of 40340352 is 25304304.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (40340347) and next prime (40340357).

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40340357) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 952 + ... + 9032.

Almost surely, 2^40340352 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 40340352, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (57705480).

40340352 is an abundant number, since it is smaller than the sum of its proper divisors (75070608).

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

40340352 is a wasteful number, since it uses less digits than its factorization.

40340352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8111 (or 8099 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 21.

The square root of 40340352 is about 6351.4055137426. The cubic root of 40340352 is about 342.9624406736.

Adding to 40340352 its reverse (25304304), we get a palindrome (65644656).

It can be divided in two parts, 403 and 40352, that added together give a triangular number (40755 = T₂₈₅).

The spelling of 40340352 in words is "forty million, three hundred forty thousand, three hundred fifty-two".