271640652 has 12 divisors (see below), whose sum is σ = 633828216. Its totient is φ = 90546880.

The previous prime is 271640639. The next prime is 271640653. The reversal of 271640652 is 256046172.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (271640653) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11318349 + ... + 11318372.

It is an arithmetic number, because the mean of its divisors is an integer number (52819018).

Almost surely, 2^271640652 is an apocalyptic number.

It is an amenable number.

271640652 is an abundant number, since it is smaller than the sum of its proper divisors (362187564).

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

271640652 is a wasteful number, since it uses less digits than its factorization.

271640652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22636728 (or 22636726 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 33.

The square root of 271640652 is about 16481.5245654035. The cubic root of 271640652 is about 647.6369041127.

The spelling of 271640652 in words is "two hundred seventy-one million, six hundred forty thousand, six hundred fifty-two".