440042340149 has 2 divisors, whose sum is σ = 440042340150. Its totient is φ = 440042340148.

The previous prime is 440042340083. The next prime is 440042340167. The reversal of 440042340149 is 941043240044.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 250105011025 + 189937329124 = 500105^2 + 435818^2 .

It is a cyclic number.

It is not a de Polignac number, because 440042340149 - 2²⁸ = 439773904693 is a prime.

It is a super-2 number, since 2×440042340149² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (440042340349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 220021170074 + 220021170075.

It is an arithmetic number, because the mean of its divisors is an integer number (220021170075).

Almost surely, 2^440042340149 is an apocalyptic number.

It is an amenable number.

440042340149 is a deficient number, since it is larger than the sum of its proper divisors (1).

440042340149 is an equidigital number, since it uses as much as digits as its factorization.

440042340149 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 55296, while the sum is 35.

The spelling of 440042340149 in words is "four hundred forty billion, forty-two million, three hundred forty thousand, one hundred forty-nine".