270139128 has 64 divisors (see below), whose sum is σ = 782434560. Its totient is φ = 76121856.

The previous prime is 270139099. The next prime is 270139141. The reversal of 270139128 is 821931072.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1251 + ... + 23277.

It is an arithmetic number, because the mean of its divisors is an integer number (12225540).

Almost surely, 2^270139128 is an apocalyptic number.

270139128 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 270139128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (391217280).

270139128 is an abundant number, since it is smaller than the sum of its proper divisors (512295432).

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

270139128 is a wasteful number, since it uses less digits than its factorization.

270139128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22116 (or 22112 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 33.

The square root of 270139128 is about 16435.9097101438. The cubic root of 270139128 is about 646.4414035724.

The spelling of 270139128 in words is "two hundred seventy million, one hundred thirty-nine thousand, one hundred twenty-eight".