642382036 has 6 divisors (see below), whose sum is σ = 1124168570. Its totient is φ = 321191016.

The previous prime is 642382021. The next prime is 642382067. The reversal of 642382036 is 630283246.

642382036 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 409819536 + 232562500 = 20244^2 + 15250^2 .

It is a junction number, because it is equal to n+sod(n) for n = 642381992 and 642382010.

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, 80297751 + ... + 80297758.

Almost surely, 2^642382036 is an apocalyptic number.

It is an amenable number.

642382036 is a deficient number, since it is larger than the sum of its proper divisors (481786534).

642382036 is a wasteful number, since it uses less digits than its factorization.

642382036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160595513 (or 160595511 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 34.

The square root of 642382036 is about 25345.2566765460. The cubic root of 642382036 is about 862.8417066822.

The spelling of 642382036 in words is "six hundred forty-two million, three hundred eighty-two thousand, thirty-six".