724278 has 8 divisors (see below), whose sum is σ = 1448568. Its totient is φ = 241424.

The previous prime is 724277. The next prime is 724291. The reversal of 724278 is 872427.

724278 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

724278 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (724277) 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, 60351 + ... + 60362.

It is an arithmetic number, because the mean of its divisors is an integer number (181071).

2⁷²⁴²⁷⁸ is an apocalyptic number.

724278 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

724278 is a wasteful number, since it uses less digits than its factorization.

724278 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120718.

The product of its digits is 6272, while the sum is 30.

The square root of 724278 is about 851.0452396906. The cubic root of 724278 is about 89.8052579332.

The spelling of 724278 in words is "seven hundred twenty-four thousand, two hundred seventy-eight".