4509642 has 16 divisors (see below), whose sum is σ = 9051552. Its totient is φ = 1497840.

The previous prime is 4509623. The next prime is 4509647. The reversal of 4509642 is 2469054.

It is not an unprimeable number, because it can be changed into a prime (4509647) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 717 + ... + 3087.

It is an arithmetic number, because the mean of its divisors is an integer number (565722).

Almost surely, 2^4509642 is an apocalyptic number.

4509642 is an abundant number, since it is smaller than the sum of its proper divisors (4541910).

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

4509642 is a wasteful number, since it uses less digits than its factorization.

4509642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2693.

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 4509642 is about 2123.5917686787. The cubic root of 4509642 is about 165.2141938178.

It can be divided in two parts, 4509 and 642, that added together give a triangular number (5151 = T₁₀₁).

The spelling of 4509642 in words is "four million, five hundred nine thousand, six hundred forty-two".