642262246 has 8 divisors (see below), whose sum is σ = 996613920. Its totient is φ = 310057608.

The previous prime is 642262219. The next prime is 642262297.

642262246 is nontrivially palindromic in base 10.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5536686 + ... + 5536801.

It is an arithmetic number, because the mean of its divisors is an integer number (124576740).

Almost surely, 2^642262246 is an apocalyptic number.

642262246 is a deficient number, since it is larger than the sum of its proper divisors (354351674).

642262246 is a wasteful number, since it uses less digits than its factorization.

642262246 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11073518.

The product of its digits is 55296, while the sum is 34.

The square root of 642262246 is about 25342.8934022933. The cubic root of 642262246 is about 862.7880697353.

The spelling of 642262246 in words is "six hundred forty-two million, two hundred sixty-two thousand, two hundred forty-six".