215448 has 32 divisors (see below), whose sum is σ = 552960. Its totient is φ = 69920.

The previous prime is 215447. The next prime is 215459. The reversal of 215448 is 844512.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (215443) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1033 + ... + 1223.

It is an arithmetic number, because the mean of its divisors is an integer number (17280).

2²¹⁵⁴⁴⁸ 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 215448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (276480).

215448 is an abundant number, since it is smaller than the sum of its proper divisors (337512).

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

215448 is a wasteful number, since it uses less digits than its factorization.

215448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 247 (or 243 counting only the distinct ones).

The product of its digits is 1280, while the sum is 24.

The square root of 215448 is about 464.1637642040. The cubic root of 215448 is about 59.9488452879.

The spelling of 215448 in words is "two hundred fifteen thousand, four hundred forty-eight".