275000780 has 24 divisors (see below), whose sum is σ = 583223760. Its totient is φ = 108910400.

The previous prime is 275000779. The next prime is 275000849. The reversal of 275000780 is 87000572.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66050 + ... + 70089.

It is an arithmetic number, because the mean of its divisors is an integer number (24300990).

Almost surely, 2^275000780 is an apocalyptic number.

275000780 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

275000780 is an abundant number, since it is smaller than the sum of its proper divisors (308222980).

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

275000780 is a wasteful number, since it uses less digits than its factorization.

275000780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136249 (or 136247 counting only the distinct ones).

The product of its (nonzero) digits is 3920, while the sum is 29.

The square root of 275000780 is about 16583.1474696452. The cubic root of 275000780 is about 650.2963382502.

The spelling of 275000780 in words is "two hundred seventy-five million, seven hundred eighty", and thus it is an aban number.