438616 has 16 divisors (see below), whose sum is σ = 831600. Its totient is φ = 216864.

The previous prime is 438611. The next prime is 438623. The reversal of 438616 is 616834.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (438611) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 621 + ... + 1123.

It is an arithmetic number, because the mean of its divisors is an integer number (51975).

2⁴³⁸⁶¹⁶ is an apocalyptic number.

It is an amenable number.

438616 is a deficient number, since it is larger than the sum of its proper divisors (392984).

438616 is a wasteful number, since it uses less digits than its factorization.

438616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 618 (or 614 counting only the distinct ones).

The product of its digits is 3456, while the sum is 28.

The square root of 438616 is about 662.2809071686. The cubic root of 438616 is about 75.9792186948.

The spelling of 438616 in words is "four hundred thirty-eight thousand, six hundred sixteen".