40616449 has 2 divisors, whose sum is σ = 40616450. Its totient is φ = 40616448.

The previous prime is 40616447. The next prime is 40616461. The reversal of 40616449 is 94461604.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 40551424 + 65025 = 6368^2 + 255^2 .

It is a cyclic number.

It is not a de Polignac number, because 40616449 - 2¹ = 40616447 is a prime.

Together with 40616447, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (40616441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20308224 + 20308225.

It is an arithmetic number, because the mean of its divisors is an integer number (20308225).

Almost surely, 2^40616449 is an apocalyptic number.

It is an amenable number.

40616449 is a deficient number, since it is larger than the sum of its proper divisors (1).

40616449 is an equidigital number, since it uses as much as digits as its factorization.

40616449 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20736, while the sum is 34.

The square root of 40616449 is about 6373.1035610603. The cubic root of 40616449 is about 343.7430956630.

The spelling of 40616449 in words is "forty million, six hundred sixteen thousand, four hundred forty-nine".