252478 has 8 divisors (see below), whose sum is σ = 388080. Its totient is φ = 123120.

The previous prime is 252463. The next prime is 252481. The reversal of 252478 is 874252.

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

It is a congruent number.

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, 1458 + ... + 1621.

It is an arithmetic number, because the mean of its divisors is an integer number (48510).

2²⁵²⁴⁷⁸ is an apocalyptic number.

252478 is a deficient number, since it is larger than the sum of its proper divisors (135602).

252478 is a wasteful number, since it uses less digits than its factorization.

252478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3122.

The product of its digits is 4480, while the sum is 28.

The square root of 252478 is about 502.4718897610. The cubic root of 252478 is about 63.2035075231.

The spelling of 252478 in words is "two hundred fifty-two thousand, four hundred seventy-eight".