40735889 has 2 divisors, whose sum is σ = 40735890. Its totient is φ = 40735888.

The previous prime is 40735879. The next prime is 40735913. The reversal of 40735889 is 98853704.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 29073664 + 11662225 = 5392^2 + 3415^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40735889 is a prime.

It is not a weakly prime, because it can be changed into another prime (40735879) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20367944 + 20367945.

It is an arithmetic number, because the mean of its divisors is an integer number (20367945).

Almost surely, 2^40735889 is an apocalyptic number.

It is an amenable number.

40735889 is a deficient number, since it is larger than the sum of its proper divisors (1).

40735889 is an equidigital number, since it uses as much as digits as its factorization.

40735889 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 241920, while the sum is 44.

The square root of 40735889 is about 6382.4673128814. The cubic root of 40735889 is about 344.0797121252.

The spelling of 40735889 in words is "forty million, seven hundred thirty-five thousand, eight hundred eighty-nine".