275641420 has 12 divisors (see below), whose sum is σ = 578847024. Its totient is φ = 110256560.

The previous prime is 275641409. The next prime is 275641439. The reversal of 275641420 is 24146572.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6891016 + ... + 6891055.

It is an arithmetic number, because the mean of its divisors is an integer number (48237252).

Almost surely, 2^275641420 is an apocalyptic number.

275641420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

275641420 is an abundant number, since it is smaller than the sum of its proper divisors (303205604).

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

275641420 is a wasteful number, since it uses less digits than its factorization.

275641420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13782080 (or 13782078 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 31.

The square root of 275641420 is about 16602.4522285113. The cubic root of 275641420 is about 650.8009219787.

Adding to 275641420 its reverse (24146572), we get a palindrome (299787992).

The spelling of 275641420 in words is "two hundred seventy-five million, six hundred forty-one thousand, four hundred twenty".