4240004001949 has 2 divisors, whose sum is σ = 4240004001950. Its totient is φ = 4240004001948.

The previous prime is 4240004001929. The next prime is 4240004001991. The reversal of 4240004001949 is 9491004000424.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3166200301924 + 1073803700025 = 1779382^2 + 1036245^2 .

It is a cyclic number.

It is not a de Polignac number, because 4240004001949 - 2¹⁵ = 4240003969181 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4240004001929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2120002000974 + 2120002000975.

It is an arithmetic number, because the mean of its divisors is an integer number (2120002000975).

Almost surely, 2^{4240004001949} is an apocalyptic number.

It is an amenable number.

4240004001949 is a deficient number, since it is larger than the sum of its proper divisors (1).

4240004001949 is an equidigital number, since it uses as much as digits as its factorization.

4240004001949 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 41472, while the sum is 37.

The spelling of 4240004001949 in words is "four trillion, two hundred forty billion, four million, one thousand, nine hundred forty-nine".