40444949 has 2 divisors, whose sum is σ = 40444950. Its totient is φ = 40444948.

The previous prime is 40444931. The next prime is 40444951. The reversal of 40444949 is 94944404.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 39816100 + 628849 = 6310^2 + 793^2 .

It is a cyclic number.

It is not a de Polignac number, because 40444949 - 2⁸ = 40444693 is a prime.

It is a super-2 number, since 2×40444949² = 3271587799225202, which contains 22 as substring.

Together with 40444951, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40444979) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20222474 + 20222475.

It is an arithmetic number, because the mean of its divisors is an integer number (20222475).

Almost surely, 2^40444949 is an apocalyptic number.

It is an amenable number.

40444949 is a deficient number, since it is larger than the sum of its proper divisors (1).

40444949 is an equidigital number, since it uses as much as digits as its factorization.

40444949 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 82944, while the sum is 38.

The square root of 40444949 is about 6359.6343448346. The cubic root of 40444949 is about 343.2586030418.

The spelling of 40444949 in words is "forty million, four hundred forty-four thousand, nine hundred forty-nine".