275678920 has 64 divisors (see below), whose sum is σ = 706112640. Its totient is φ = 95884800.

The previous prime is 275678911. The next prime is 275678927. The reversal of 275678920 is 29876572.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is not an unprimeable number, because it can be changed into a prime (275678927) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3501 + ... + 23740.

It is an arithmetic number, because the mean of its divisors is an integer number (11033010).

Almost surely, 2^275678920 is an apocalyptic number.

275678920 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

275678920 is an abundant number, since it is smaller than the sum of its proper divisors (430433720).

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

275678920 is a wasteful number, since it uses less digits than its factorization.

275678920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27286 (or 27282 counting only the distinct ones).

The product of its (nonzero) digits is 423360, while the sum is 46.

The square root of 275678920 is about 16603.5815413422. The cubic root of 275678920 is about 650.8304336633.

It can be divided in two parts, 275 and 678920, that added together give a triangular number (679195 = T₁₁₆₅).

The spelling of 275678920 in words is "two hundred seventy-five million, six hundred seventy-eight thousand, nine hundred twenty".