6390563342 has 4 divisors (see below), whose sum is σ = 9585845016. Its totient is φ = 3195281670.

The previous prime is 6390563297. The next prime is 6390563369. The reversal of 6390563342 is 2433650936.

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

It is a super-2 number, since 2×6390563342² = 81678599656228417928, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 6390563342.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1597640834 + ... + 1597640837.

It is an arithmetic number, because the mean of its divisors is an integer number (2396461254).

Almost surely, 2^6390563342 is an apocalyptic number.

6390563342 is a deficient number, since it is larger than the sum of its proper divisors (3195281674).

6390563342 is a wasteful number, since it uses less digits than its factorization.

6390563342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3195281673.

The product of its (nonzero) digits is 349920, while the sum is 41.

The square root of 6390563342 is about 79940.9991306088. Note that the first 3 decimals coincide. The cubic root of 6390563342 is about 1855.7225619459.

The spelling of 6390563342 in words is "six billion, three hundred ninety million, five hundred sixty-three thousand, three hundred forty-two".