40768733 has 4 divisors (see below), whose sum is σ = 40782588. Its totient is φ = 40754880.

The previous prime is 40768729. The next prime is 40768753. The reversal of 40768733 is 33786704.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 40424164 + 344569 = 6358^2 + 587^2 .

It is a cyclic number.

It is not a de Polignac number, because 40768733 - 2² = 40768729 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40768753) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 566 + ... + 9047.

It is an arithmetic number, because the mean of its divisors is an integer number (10195647).

Almost surely, 2^40768733 is an apocalyptic number.

It is an amenable number.

40768733 is a deficient number, since it is larger than the sum of its proper divisors (13855).

40768733 is an equidigital number, since it uses as much as digits as its factorization.

40768733 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13854.

The product of its (nonzero) digits is 84672, while the sum is 38.

The square root of 40768733 is about 6385.0397806122. The cubic root of 40768733 is about 344.1721606475.

The spelling of 40768733 in words is "forty million, seven hundred sixty-eight thousand, seven hundred thirty-three".