6423442356 has 12 divisors (see below), whose sum is σ = 14988032192. Its totient is φ = 2141147448.

The previous prime is 6423442343. The next prime is 6423442357. The reversal of 6423442356 is 6532443246.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×6423442356² = 82521223401709661472, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6423442357) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 267643420 + ... + 267643443.

Almost surely, 2^6423442356 is an apocalyptic number.

It is an amenable number.

6423442356 is an abundant number, since it is smaller than the sum of its proper divisors (8564589836).

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

6423442356 is a wasteful number, since it uses less digits than its factorization.

6423442356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 535286870 (or 535286868 counting only the distinct ones).

The product of its digits is 414720, while the sum is 39.

The square root of 6423442356 is about 80146.3808041261. The cubic root of 6423442356 is about 1858.8996416862.

The spelling of 6423442356 in words is "six billion, four hundred twenty-three million, four hundred forty-two thousand, three hundred fifty-six".