271393890 has 64 divisors (see below), whose sum is σ = 692098560. Its totient is φ = 67979520.

The previous prime is 271393873. The next prime is 271393907. The reversal of 271393890 is 98393172.

It is an interprime number because it is at equal distance from previous prime (271393873) and next prime (271393907).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 27975 + ... + 36405.

It is an arithmetic number, because the mean of its divisors is an integer number (10814040).

Almost surely, 2^271393890 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 271393890, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (346049280).

271393890 is an abundant number, since it is smaller than the sum of its proper divisors (420704670).

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

271393890 is a wasteful number, since it uses less digits than its factorization.

271393890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8507.

The product of its (nonzero) digits is 81648, while the sum is 42.

The square root of 271393890 is about 16474.0368458979. The cubic root of 271393890 is about 647.4407373597.

The spelling of 271393890 in words is "two hundred seventy-one million, three hundred ninety-three thousand, eight hundred ninety".