3842440957 has 2 divisors, whose sum is σ = 3842440958. Its totient is φ = 3842440956.

The previous prime is 3842440951. The next prime is 3842440981. The reversal of 3842440957 is 7590442483.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2085657561 + 1756783396 = 45669^2 + 41914^2 .

It is a cyclic number.

It is not a de Polignac number, because 3842440957 - 2²³ = 3834052349 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3842440951) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1921220478 + 1921220479.

It is an arithmetic number, because the mean of its divisors is an integer number (1921220479).

Almost surely, 2^3842440957 is an apocalyptic number.

It is an amenable number.

3842440957 is a deficient number, since it is larger than the sum of its proper divisors (1).

3842440957 is an equidigital number, since it uses as much as digits as its factorization.

3842440957 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 967680, while the sum is 46.

The square root of 3842440957 is about 61987.4257974954. The cubic root of 3842440957 is about 1566.2787925604.

The spelling of 3842440957 in words is "three billion, eight hundred forty-two million, four hundred forty thousand, nine hundred fifty-seven".