245428 has 6 divisors (see below), whose sum is σ = 429506. Its totient is φ = 122712.

The previous prime is 245419. The next prime is 245437. The reversal of 245428 is 824542.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (245419) and next prime (245437).

It can be written as a sum of positive squares in only one way, i.e., 242064 + 3364 = 492^2 + 58^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30675 + ... + 30682.

2²⁴⁵⁴²⁸ is an apocalyptic number.

It is an amenable number.

245428 is a deficient number, since it is larger than the sum of its proper divisors (184078).

245428 is a wasteful number, since it uses less digits than its factorization.

245428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61361 (or 61359 counting only the distinct ones).

The product of its digits is 2560, while the sum is 25.

The square root of 245428 is about 495.4069034642. The cubic root of 245428 is about 62.6096634702.

The spelling of 245428 in words is "two hundred forty-five thousand, four hundred twenty-eight".