40331355 has 8 divisors (see below), whose sum is σ = 64530192. Its totient is φ = 21510048.

The previous prime is 40331353. The next prime is 40331359. The reversal of 40331355 is 55313304.

It is a happy number.

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

It is not a de Polignac number, because 40331355 - 2¹ = 40331353 is a prime.

It is a super-2 number, since 2×40331355² = 3253236392272050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (40331353) 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, 1344364 + ... + 1344393.

It is an arithmetic number, because the mean of its divisors is an integer number (8066274).

Almost surely, 2^40331355 is an apocalyptic number.

40331355 is a deficient number, since it is larger than the sum of its proper divisors (24198837).

40331355 is a wasteful number, since it uses less digits than its factorization.

40331355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2688765.

The product of its (nonzero) digits is 2700, while the sum is 24.

The square root of 40331355 is about 6350.6972058192. The cubic root of 40331355 is about 342.9369421149.

Adding to 40331355 its reverse (55313304), we get a palindrome (95644659).

The spelling of 40331355 in words is "forty million, three hundred thirty-one thousand, three hundred fifty-five".