275641400 has 48 divisors (see below), whose sum is σ = 678572640. Its totient is φ = 103769600.

The previous prime is 275641391. The next prime is 275641403. The reversal of 275641400 is 4146572.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (275641403) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 37136 + ... + 43935.

It is an arithmetic number, because the mean of its divisors is an integer number (14136930).

Almost surely, 2^275641400 is an apocalyptic number.

275641400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

275641400 is an abundant number, since it is smaller than the sum of its proper divisors (402931240).

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

275641400 is a wasteful number, since it uses less digits than its factorization.

275641400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81104 (or 81095 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 29.

The square root of 275641400 is about 16602.4516261906. The cubic root of 275641400 is about 650.8009062384.

Adding to 275641400 its reverse (4146572), we get a palindrome (279787972).

The spelling of 275641400 in words is "two hundred seventy-five million, six hundred forty-one thousand, four hundred".