40633331 has 4 divisors (see below), whose sum is σ = 40993032. Its totient is φ = 40273632.

The previous prime is 40633319. The next prime is 40633339. The reversal of 40633331 is 13333604.

40633331 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40633331 is a prime.

It is a super-2 number, since 2×40633331² = 3302135176311122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40633297 and 40633306.

It is not an unprimeable number, because it can be changed into a prime (40633339) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 179681 + ... + 179906.

It is an arithmetic number, because the mean of its divisors is an integer number (10248258).

Almost surely, 2^40633331 is an apocalyptic number.

40633331 is a deficient number, since it is larger than the sum of its proper divisors (359701).

40633331 is a wasteful number, since it uses less digits than its factorization.

40633331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 359700.

The product of its (nonzero) digits is 1944, while the sum is 23.

The square root of 40633331 is about 6374.4278958978. The cubic root of 40633331 is about 343.7907140316.

Adding to 40633331 its reverse (13333604), we get a palindrome (53966935).

The spelling of 40633331 in words is "forty million, six hundred thirty-three thousand, three hundred thirty-one".