270988221 has 16 divisors (see below), whose sum is σ = 417194624. Its totient is φ = 153252864.

The previous prime is 270988219. The next prime is 270988261. The reversal of 270988221 is 122889072.

It is not a de Polignac number, because 270988221 - 2¹ = 270988219 is a prime.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 270988221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (270988261) 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, 64480 + ... + 68553.

It is an arithmetic number, because the mean of its divisors is an integer number (26074664).

Almost surely, 2^270988221 is an apocalyptic number.

270988221 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

270988221 is a deficient number, since it is larger than the sum of its proper divisors (146206403).

270988221 is a wasteful number, since it uses less digits than its factorization.

270988221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133140.

The product of its (nonzero) digits is 32256, while the sum is 39.

The square root of 270988221 is about 16461.7198676202. The cubic root of 270988221 is about 647.1179867752.

The spelling of 270988221 in words is "two hundred seventy million, nine hundred eighty-eight thousand, two hundred twenty-one".