275385400 has 48 divisors (see below), whose sum is σ = 660939840. Its totient is φ = 106598400.

The previous prime is 275385377. The next prime is 275385401. The reversal of 275385400 is 4583572.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (275385401) 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, 16009 + ... + 28408.

It is an arithmetic number, because the mean of its divisors is an integer number (13769580).

Almost surely, 2^275385400 is an apocalyptic number.

275385400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

275385400 is an abundant number, since it is smaller than the sum of its proper divisors (385554440).

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

275385400 is a wasteful number, since it uses less digits than its factorization.

275385400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44464 (or 44455 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 34.

The square root of 275385400 is about 16594.7401305353. The cubic root of 275385400 is about 650.5993682542.

The spelling of 275385400 in words is "two hundred seventy-five million, three hundred eighty-five thousand, four hundred".