41994649 has 2 divisors, whose sum is σ = 41994650. Its totient is φ = 41994648.

The previous prime is 41994647. The next prime is 41994671. The reversal of 41994649 is 94649914.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 40449600 + 1545049 = 6360^2 + 1243^2 .

It is a cyclic number.

It is not a de Polignac number, because 41994649 - 2¹ = 41994647 is a prime.

Together with 41994647, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 41994599 and 41994608.

It is not a weakly prime, because it can be changed into another prime (41994647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20997324 + 20997325.

It is an arithmetic number, because the mean of its divisors is an integer number (20997325).

Almost surely, 2^41994649 is an apocalyptic number.

It is an amenable number.

41994649 is a deficient number, since it is larger than the sum of its proper divisors (1).

41994649 is an equidigital number, since it uses as much as digits as its factorization.

41994649 is an evil number, because the sum of its binary digits is even.

The product of its digits is 279936, while the sum is 46.

The square root of 41994649 is about 6480.3278466448. The cubic root of 41994649 is about 347.5879017834.

The spelling of 41994649 in words is "forty-one million, nine hundred ninety-four thousand, six hundred forty-nine".