40338481 has 8 divisors (see below), whose sum is σ = 42364224. Its totient is φ = 38335440.

The previous prime is 40338479. The next prime is 40338503. The reversal of 40338481 is 18483304.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 40338481 - 2¹ = 40338479 is a prime.

It is a super-2 number, since 2×40338481² = 3254386098774722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40338451) 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, 1975 + ... + 9196.

It is an arithmetic number, because the mean of its divisors is an integer number (5295528).

Almost surely, 2^40338481 is an apocalyptic number.

It is an amenable number.

40338481 is a deficient number, since it is larger than the sum of its proper divisors (2025743).

40338481 is a wasteful number, since it uses less digits than its factorization.

40338481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11351.

The product of its (nonzero) digits is 9216, while the sum is 31.

The square root of 40338481 is about 6351.2582218014. The cubic root of 40338481 is about 342.9571383513.

The spelling of 40338481 in words is "forty million, three hundred thirty-eight thousand, four hundred eighty-one".