642000246 has 16 divisors (see below), whose sum is σ = 1318703664. Its totient is φ = 208216224.

The previous prime is 642000239. The next prime is 642000251.

642000246 is nontrivially palindromic in base 10.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1445725 + ... + 1446168.

It is an arithmetic number, because the mean of its divisors is an integer number (82418979).

Almost surely, 2^642000246 is an apocalyptic number.

642000246 is an abundant number, since it is smaller than the sum of its proper divisors (676703418).

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

642000246 is a wasteful number, since it uses less digits than its factorization.

642000246 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2891935.

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 642000246 is about 25337.7237730622. The cubic root of 642000246 is about 862.6707338545.

It can be divided in two parts, 642000 and 246, that added together give a palindrome (642246).

The spelling of 642000246 in words is "six hundred forty-two million, two hundred forty-six", and thus it is an aban number.