7842423484 has 48 divisors (see below), whose sum is σ = 16236158400. Its totient is φ = 3243050496.

The previous prime is 7842423481. The next prime is 7842423487. The reversal of 7842423484 is 4843242487.

It is an interprime number because it is at equal distance from previous prime (7842423481) and next prime (7842423487).

It is a super-2 number, since 2×7842423484² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7842423481) 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 15 ways as a sum of consecutive naturals, for example, 2409202 + ... + 2412454.

It is an arithmetic number, because the mean of its divisors is an integer number (338253300).

Almost surely, 2^7842423484 is an apocalyptic number.

It is an amenable number.

7842423484 is an abundant number, since it is smaller than the sum of its proper divisors (8393734916).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7842423484 is a wasteful number, since it uses less digits than its factorization.

7842423484 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6262 (or 6260 counting only the distinct ones).

The product of its digits is 1376256, while the sum is 46.

The square root of 7842423484 is about 88557.4586582068. The cubic root of 7842423484 is about 1986.7814511226.

The spelling of 7842423484 in words is "seven billion, eight hundred forty-two million, four hundred twenty-three thousand, four hundred eighty-four".