245458 has 16 divisors (see below), whose sum is σ = 393984. Its totient is φ = 114480.

The previous prime is 245437. The next prime is 245471. The reversal of 245458 is 854542.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2241 + ... + 2347.

It is an arithmetic number, because the mean of its divisors is an integer number (24624).

2²⁴⁵⁴⁵⁸ is an apocalyptic number.

245458 is a deficient number, since it is larger than the sum of its proper divisors (148526).

245458 is a wasteful number, since it uses less digits than its factorization.

245458 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177.

The product of its digits is 6400, while the sum is 28.

The square root of 245458 is about 495.4371806799. The cubic root of 245458 is about 62.6122144063.

It can be divided in two parts, 245 and 458, that added together give a triangular number (703 = T₃₇).

The spelling of 245458 in words is "two hundred forty-five thousand, four hundred fifty-eight".