276480906 has 32 divisors (see below), whose sum is σ = 596137920. Its totient is φ = 84979584.

The previous prime is 276480899. The next prime is 276480923. The reversal of 276480906 is 609084672.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 124401 + ... + 126603.

It is an arithmetic number, because the mean of its divisors is an integer number (18629310).

Almost surely, 2^276480906 is an apocalyptic number.

276480906 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

276480906 is an abundant number, since it is smaller than the sum of its proper divisors (319657014).

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

276480906 is a wasteful number, since it uses less digits than its factorization.

276480906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3830.

The product of its (nonzero) digits is 145152, while the sum is 42.

The square root of 276480906 is about 16627.7149963547. The cubic root of 276480906 is about 651.4609395741.

The spelling of 276480906 in words is "two hundred seventy-six million, four hundred eighty thousand, nine hundred six".