1438464 has 36 divisors (see below), whose sum is σ = 3830456. Its totient is φ = 479232.

The previous prime is 1438457. The next prime is 1438477. The reversal of 1438464 is 4648341.

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 169 + ... + 1704.

2^1438464 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1438464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1915228).

1438464 is an abundant number, since it is smaller than the sum of its proper divisors (2391992).

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

1438464 is an equidigital number, since it uses as much as digits as its factorization.

1438464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1892 (or 1878 counting only the distinct ones).

The product of its digits is 9216, while the sum is 30.

The square root of 1438464 is about 1199.3598292423. The cubic root of 1438464 is about 112.8841583108.

The spelling of 1438464 in words is "one million, four hundred thirty-eight thousand, four hundred sixty-four".