40533331 has 2 divisors, whose sum is σ = 40533332. Its totient is φ = 40533330.

The previous prime is 40533319. The next prime is 40533377. The reversal of 40533331 is 13333504.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40533331 - 2⁷ = 40533203 is a prime.

It is a super-2 number, since 2×40533331² = 3285901843911122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (40533301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20266665 + 20266666.

It is an arithmetic number, because the mean of its divisors is an integer number (20266666).

Almost surely, 2^40533331 is an apocalyptic number.

40533331 is a deficient number, since it is larger than the sum of its proper divisors (1).

40533331 is an equidigital number, since it uses as much as digits as its factorization.

40533331 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1620, while the sum is 22.

The square root of 40533331 is about 6366.5792227852. The cubic root of 40533331 is about 343.5084555026.

Adding to 40533331 its reverse (13333504), we get a palindrome (53866835).

The spelling of 40533331 in words is "forty million, five hundred thirty-three thousand, three hundred thirty-one".