40735949 has 2 divisors, whose sum is σ = 40735950. Its totient is φ = 40735948.

The previous prime is 40735939. The next prime is 40735951. The reversal of 40735949 is 94953704.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 40322500 + 413449 = 6350^2 + 643^2 .

It is a cyclic number.

It is not a de Polignac number, because 40735949 - 2⁸ = 40735693 is a prime.

Together with 40735951, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40735939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20367974 + 20367975.

It is an arithmetic number, because the mean of its divisors is an integer number (20367975).

Almost surely, 2^40735949 is an apocalyptic number.

It is an amenable number.

40735949 is a deficient number, since it is larger than the sum of its proper divisors (1).

40735949 is an equidigital number, since it uses as much as digits as its factorization.

40735949 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 136080, while the sum is 41.

The square root of 40735949 is about 6382.4720132563. The cubic root of 40735949 is about 344.0798810571.

The spelling of 40735949 in words is "forty million, seven hundred thirty-five thousand, nine hundred forty-nine".