275730400 has 72 divisors (see below), whose sum is σ = 734343624. Its totient is φ = 100262400.

The previous prime is 275730397. The next prime is 275730457. The reversal of 275730400 is 4037572.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6867 + ... + 24466.

It is an arithmetic number, because the mean of its divisors is an integer number (10199217).

Almost surely, 2^275730400 is an apocalyptic number.

275730400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

275730400 is an abundant number, since it is smaller than the sum of its proper divisors (458613224).

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

275730400 is a wasteful number, since it uses less digits than its factorization.

275730400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31364 (or 31351 counting only the distinct ones).

The product of its (nonzero) digits is 5880, while the sum is 28.

The square root of 275730400 is about 16605.1317369059. The cubic root of 275730400 is about 650.8709429453.

Adding to 275730400 its reverse (4037572), we get a palindrome (279767972).

The spelling of 275730400 in words is "two hundred seventy-five million, seven hundred thirty thousand, four hundred".