40702481 has 2 divisors, whose sum is σ = 40702482. Its totient is φ = 40702480.

The previous prime is 40702469. The next prime is 40702511. The reversal of 40702481 is 18420704.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 31460881 + 9241600 = 5609^2 + 3040^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40702481 is a prime.

It is a super-2 number, since 2×40702481² = 3313383919110722, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 40702481.

It is not a weakly prime, because it can be changed into another prime (40702421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20351240 + 20351241.

It is an arithmetic number, because the mean of its divisors is an integer number (20351241).

Almost surely, 2^40702481 is an apocalyptic number.

It is an amenable number.

40702481 is a deficient number, since it is larger than the sum of its proper divisors (1).

40702481 is an equidigital number, since it uses as much as digits as its factorization.

40702481 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1792, while the sum is 26.

The square root of 40702481 is about 6379.8496063779. The cubic root of 40702481 is about 343.9856250754.

The spelling of 40702481 in words is "forty million, seven hundred two thousand, four hundred eighty-one".