40730029 has 2 divisors, whose sum is σ = 40730030. Its totient is φ = 40730028.

The previous prime is 40730017. The next prime is 40730047. The reversal of 40730029 is 92003704.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 24108100 + 16621929 = 4910^2 + 4077^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40730029 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 40729985 and 40730012.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40730069) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20365014 + 20365015.

It is an arithmetic number, because the mean of its divisors is an integer number (20365015).

Almost surely, 2^40730029 is an apocalyptic number.

It is an amenable number.

40730029 is a deficient number, since it is larger than the sum of its proper divisors (1).

40730029 is an equidigital number, since it uses as much as digits as its factorization.

40730029 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1512, while the sum is 25.

The square root of 40730029 is about 6382.0082262561. The cubic root of 40730029 is about 344.0632123109.

The spelling of 40730029 in words is "forty million, seven hundred thirty thousand, twenty-nine".