40670737 has 2 divisors, whose sum is σ = 40670738. Its totient is φ = 40670736.

The previous prime is 40670723. The next prime is 40670753. The reversal of 40670737 is 73707604.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 37075921 + 3594816 = 6089^2 + 1896^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40670737 is a prime.

It is not a weakly prime, because it can be changed into another prime (40670767) 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, 20335368 + 20335369.

It is an arithmetic number, because the mean of its divisors is an integer number (20335369).

Almost surely, 2^40670737 is an apocalyptic number.

It is an amenable number.

40670737 is a deficient number, since it is larger than the sum of its proper divisors (1).

40670737 is an equidigital number, since it uses as much as digits as its factorization.

40670737 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24696, while the sum is 34.

The square root of 40670737 is about 6377.3612881818. The cubic root of 40670737 is about 343.8961766408.

The spelling of 40670737 in words is "forty million, six hundred seventy thousand, seven hundred thirty-seven".