40921733 has 2 divisors, whose sum is σ = 40921734. Its totient is φ = 40921732.

The previous prime is 40921729. The next prime is 40921753. The reversal of 40921733 is 33712904.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25421764 + 15499969 = 5042^2 + 3937^2 .

It is a cyclic number.

It is not a de Polignac number, because 40921733 - 2² = 40921729 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 40921696 and 40921705.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40921723) 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 as a sum of consecutive naturals, namely, 20460866 + 20460867.

It is an arithmetic number, because the mean of its divisors is an integer number (20460867).

Almost surely, 2^40921733 is an apocalyptic number.

It is an amenable number.

40921733 is a deficient number, since it is larger than the sum of its proper divisors (1).

40921733 is an equidigital number, since it uses as much as digits as its factorization.

40921733 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4536, while the sum is 29.

The square root of 40921733 is about 6397.0096920358. The cubic root of 40921733 is about 344.6021683217.

The spelling of 40921733 in words is "forty million, nine hundred twenty-one thousand, seven hundred thirty-three".