245000028 has 48 divisors (see below), whose sum is σ = 703592960. Its totient is φ = 64615104.

The previous prime is 245000027. The next prime is 245000047. The reversal of 245000028 is 820000542.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 244999968 and 245000013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245000027) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 111088 + ... + 113271.

Almost surely, 2^245000028 is an apocalyptic number.

245000028 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

245000028 is an abundant number, since it is smaller than the sum of its proper divisors (458592932).

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

245000028 is a wasteful number, since it uses less digits than its factorization.

245000028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224386 (or 224384 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 245000028 is about 15652.4767369257. The cubic root of 245000028 is about 625.7324984050.

The spelling of 245000028 in words is "two hundred forty-five million, twenty-eight", and thus it is an aban number.