438774 has 32 divisors (see below), whose sum is σ = 1038336. Its totient is φ = 120960.

The previous prime is 438769. The next prime is 438793. The reversal of 438774 is 477834.

It is a happy number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 438774.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1134 + ... + 1470.

It is an arithmetic number, because the mean of its divisors is an integer number (32448).

2⁴³⁸⁷⁷⁴ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 438774, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (519168).

438774 is an abundant number, since it is smaller than the sum of its proper divisors (599562).

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

438774 is a wasteful number, since it uses less digits than its factorization.

438774 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 380.

The product of its digits is 18816, while the sum is 33.

The square root of 438774 is about 662.4001811594. The cubic root of 438774 is about 75.9883407784.

Subtracting 438774 from its reverse (477834), we obtain a triangular number (39060 = T₂₇₉).

The spelling of 438774 in words is "four hundred thirty-eight thousand, seven hundred seventy-four".