271401820 has 12 divisors (see below), whose sum is σ = 569943864. Its totient is φ = 108560720.

The previous prime is 271401797. The next prime is 271401827. The reversal of 271401820 is 28104172.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (271401827) 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, 6785026 + ... + 6785065.

It is an arithmetic number, because the mean of its divisors is an integer number (47495322).

Almost surely, 2^271401820 is an apocalyptic number.

271401820 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

271401820 is an abundant number, since it is smaller than the sum of its proper divisors (298542044).

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

271401820 is a wasteful number, since it uses less digits than its factorization.

271401820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13570100 (or 13570098 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 25.

The square root of 271401820 is about 16474.2775258887. The cubic root of 271401820 is about 647.4470432681.

Adding to 271401820 its reverse (28104172), we get a palindrome (299505992).

The spelling of 271401820 in words is "two hundred seventy-one million, four hundred one thousand, eight hundred twenty".