245628 has 18 divisors (see below), whose sum is σ = 620984. Its totient is φ = 81864.

The previous prime is 245627. The next prime is 245629. The reversal of 245628 is 826542.

It is an interprime number because it is at equal distance from previous prime (245627) and next prime (245629).

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×245628² = 120666228768, which contains 22 as substring.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245621) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3376 + ... + 3447.

2²⁴⁵⁶²⁸ is an apocalyptic number.

It is an amenable number.

245628 is an abundant number, since it is smaller than the sum of its proper divisors (375356).

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

245628 is a wasteful number, since it uses less digits than its factorization.

245628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6833 (or 6828 counting only the distinct ones).

The product of its digits is 3840, while the sum is 27.

The square root of 245628 is about 495.6087166304. The cubic root of 245628 is about 62.6266657857.

The spelling of 245628 in words is "two hundred forty-five thousand, six hundred twenty-eight".