4308642 has 24 divisors (see below), whose sum is σ = 10054044. Its totient is φ = 1325664.

The previous prime is 4308637. The next prime is 4308653. The reversal of 4308642 is 2468034.

It can be written as a sum of positive squares in 2 ways, for example, as 3884841 + 423801 = 1971^2 + 651^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8973 + ... + 9440.

Almost surely, 2^4308642 is an apocalyptic number.

4308642 is an abundant number, since it is smaller than the sum of its proper divisors (5745402).

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

4308642 is a wasteful number, since it uses less digits than its factorization.

4308642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18434 (or 18431 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

The square root of 4308642 is about 2075.7268606442. The cubic root of 4308642 is about 162.7221985966.

Subtracting from 4308642 its product of nonzero digits (4608), we obtain a palindrome (4304034).

It can be divided in two parts, 4308 and 642, that added together give a triangular number (4950 = T₉₉).

The spelling of 4308642 in words is "four million, three hundred eight thousand, six hundred forty-two".