270193989 has 24 divisors (see below), whose sum is σ = 391356480. Its totient is φ = 165739392.

The previous prime is 270193933. The next prime is 270193991. The reversal of 270193989 is 989391072.

It is not a de Polignac number, because 270193989 - 2⁹ = 270193477 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (270193909) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 206712 + ... + 208014.

It is an arithmetic number, because the mean of its divisors is an integer number (16306520).

Almost surely, 2^270193989 is an apocalyptic number.

It is an amenable number.

270193989 is a deficient number, since it is larger than the sum of its proper divisors (121162491).

270193989 is a wasteful number, since it uses less digits than its factorization.

270193989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1741 (or 1728 counting only the distinct ones).

The product of its (nonzero) digits is 244944, while the sum is 48.

The square root of 270193989 is about 16437.5785625499. The cubic root of 270193989 is about 646.4851612978.

The spelling of 270193989 in words is "two hundred seventy million, one hundred ninety-three thousand, nine hundred eighty-nine".