6306642 has 24 divisors (see below), whose sum is σ = 13803660. Its totient is φ = 2080800.

The previous prime is 6306617. The next prime is 6306647. The reversal of 6306642 is 2466036.

It can be written as a sum of positive squares in 2 ways, for example, as 6305121 + 1521 = 2511^2 + 39^2 .

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (6306647) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 84 + ... + 3552.

Almost surely, 2^6306642 is an apocalyptic number.

6306642 is an abundant number, since it is smaller than the sum of its proper divisors (7497018).

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

6306642 is a wasteful number, since it uses less digits than its factorization.

6306642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3578 (or 3575 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

The square root of 6306642 is about 2511.3028491204. The cubic root of 6306642 is about 184.7563581096.

Subtracting from 6306642 its reverse (2466036), we obtain a triangular number (3840606 = T₂₇₇₁).

The spelling of 6306642 in words is "six million, three hundred six thousand, six hundred forty-two".