3842407257 has 32 divisors (see below), whose sum is σ = 5556931968. Its totient is φ = 2347646976.

The previous prime is 3842407253. The next prime is 3842407277. The reversal of 3842407257 is 7527042483.

It is a happy number.

It is not a de Polignac number, because 3842407257 - 2² = 3842407253 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3842407253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5241663 + ... + 5242395.

It is an arithmetic number, because the mean of its divisors is an integer number (173654124).

Almost surely, 2^3842407257 is an apocalyptic number.

It is an amenable number.

3842407257 is a deficient number, since it is larger than the sum of its proper divisors (1714524711).

3842407257 is a wasteful number, since it uses less digits than its factorization.

3842407257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1529.

The product of its (nonzero) digits is 376320, while the sum is 42.

The square root of 3842407257 is about 61987.1539675762. The cubic root of 3842407257 is about 1566.2742135484.

The spelling of 3842407257 in words is "three billion, eight hundred forty-two million, four hundred seven thousand, two hundred fifty-seven".