270557028 has 72 divisors (see below), whose sum is σ = 797596800. Its totient is φ = 77298480.

The previous prime is 270557011. The next prime is 270557029. The reversal of 270557028 is 820755072.

It is a super-2 number, since 2×270557028² = 146402210800385568, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 270556983 and 270557001.

It is not an unprimeable number, because it can be changed into a prime (270557029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1393 + ... + 23303.

Almost surely, 2^270557028 is an apocalyptic number.

270557028 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 270557028, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (398798400).

270557028 is an abundant number, since it is smaller than the sum of its proper divisors (527039772).

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

270557028 is a wasteful number, since it uses less digits than its factorization.

270557028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21942 (or 21923 counting only the distinct ones).

The product of its (nonzero) digits is 39200, while the sum is 36.

The square root of 270557028 is about 16448.6178142724. The cubic root of 270557028 is about 646.7745759389.

The spelling of 270557028 in words is "two hundred seventy million, five hundred fifty-seven thousand, twenty-eight".