40992949 has 2 divisors, whose sum is σ = 40992950. Its totient is φ = 40992948.

The previous prime is 40992947. The next prime is 40993063. The reversal of 40992949 is 94929904.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 40870449 + 122500 = 6393^2 + 350^2 .

It is a cyclic number.

It is not a de Polignac number, because 40992949 - 2¹ = 40992947 is a prime.

Together with 40992947, 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 = 40992899 and 40992908.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40992947) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20496474 + 20496475.

It is an arithmetic number, because the mean of its divisors is an integer number (20496475).

Almost surely, 2^40992949 is an apocalyptic number.

It is an amenable number.

40992949 is a deficient number, since it is larger than the sum of its proper divisors (1).

40992949 is an equidigital number, since it uses as much as digits as its factorization.

40992949 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 209952, while the sum is 46.

The square root of 40992949 is about 6402.5736231612. The cubic root of 40992949 is about 344.8019559296.

The spelling of 40992949 in words is "forty million, nine hundred ninety-two thousand, nine hundred forty-nine".