40336340 has 72 divisors (see below), whose sum is σ = 95552352. Its totient is φ = 14182720.

The previous prime is 40336277. The next prime is 40336379. The reversal of 40336340 is 4363304.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 485939 + ... + 486021.

It is an arithmetic number, because the mean of its divisors is an integer number (1327116).

Almost surely, 2^40336340 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 40336340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47776176).

40336340 is an abundant number, since it is smaller than the sum of its proper divisors (55216012).

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

40336340 is a wasteful number, since it uses less digits than its factorization.

40336340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197 (or 148 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 23.

The square root of 40336340 is about 6351.0896702849. The cubic root of 40336340 is about 342.9510706611.

Adding to 40336340 its reverse (4363304), we get a palindrome (44699644).

The spelling of 40336340 in words is "forty million, three hundred thirty-six thousand, three hundred forty".