815448 has 32 divisors (see below), whose sum is σ = 2075760. Its totient is φ = 266880.

The previous prime is 815431. The next prime is 815453. The reversal of 815448 is 844518.

It is a congruent number.

It is an unprimeable number.

815448 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1186 + ... + 1742.

2⁸¹⁵⁴⁴⁸ 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 815448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1037880).

815448 is an abundant number, since it is smaller than the sum of its proper divisors (1260312).

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

815448 is a wasteful number, since it uses less digits than its factorization.

815448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 627 (or 623 counting only the distinct ones).

The product of its digits is 5120, while the sum is 30.

The square root of 815448 is about 903.0215944262. The cubic root of 815448 is about 93.4254985275.

The spelling of 815448 in words is "eight hundred fifteen thousand, four hundred forty-eight".