4509438 has 16 divisors (see below), whose sum is σ = 9085440. Its totient is φ = 1492056.

The previous prime is 4509419. The next prime is 4509451. The reversal of 4509438 is 8349054.

It is an alternating number because its digits alternate between even and odd.

It is a junction number, because it is equal to n+sod(n) for n = 4509399 and 4509408.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1870 + ... + 3537.

It is an arithmetic number, because the mean of its divisors is an integer number (567840).

Almost surely, 2^4509438 is an apocalyptic number.

4509438 is an abundant number, since it is smaller than the sum of its proper divisors (4576002).

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

4509438 is a wasteful number, since it uses less digits than its factorization.

4509438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5551.

The product of its (nonzero) digits is 17280, while the sum is 33.

The square root of 4509438 is about 2123.5437363050. The cubic root of 4509438 is about 165.2117025481.

The spelling of 4509438 in words is "four million, five hundred nine thousand, four hundred thirty-eight".