40344331 has 8 divisors (see below), whose sum is σ = 40774304. Its totient is φ = 39916800.

The previous prime is 40344329. The next prime is 40344371. The reversal of 40344331 is 13344304.

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 40344331 - 2¹ = 40344329 is a prime.

It is a super-2 number, since 2×40344331² = 3255330087675122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40344301) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59611 + ... + 60283.

It is an arithmetic number, because the mean of its divisors is an integer number (5096788).

Almost surely, 2^40344331 is an apocalyptic number.

40344331 is a deficient number, since it is larger than the sum of its proper divisors (429973).

40344331 is a wasteful number, since it uses less digits than its factorization.

40344331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1221.

The product of its (nonzero) digits is 1728, while the sum is 22.

The square root of 40344331 is about 6351.7187437732. The cubic root of 40344331 is about 342.9737164196.

Adding to 40344331 its reverse (13344304), we get a palindrome (53688635).

The spelling of 40344331 in words is "forty million, three hundred forty-four thousand, three hundred thirty-one".