1942439417 has 4 divisors (see below), whose sum is σ = 1944513396. Its totient is φ = 1940365440.

The previous prime is 1942439413. The next prime is 1942439441. The reversal of 1942439417 is 7149342491.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 76545001 + 1865894416 = 8749^2 + 43196^2 .

It is a cyclic number.

It is not a de Polignac number, because 1942439417 - 2² = 1942439413 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1942439413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1035584 + ... + 1037457.

It is an arithmetic number, because the mean of its divisors is an integer number (486128349).

Almost surely, 2^1942439417 is an apocalyptic number.

It is an amenable number.

1942439417 is a deficient number, since it is larger than the sum of its proper divisors (2073979).

1942439417 is an equidigital number, since it uses as much as digits as its factorization.

1942439417 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2073978.

The product of its digits is 217728, while the sum is 44.

The square root of 1942439417 is about 44073.1144463379. The cubic root of 1942439417 is about 1247.7162390498.

The spelling of 1942439417 in words is "one billion, nine hundred forty-two million, four hundred thirty-nine thousand, four hundred seventeen".