276220940 has 24 divisors (see below), whose sum is σ = 600067440. Its totient is φ = 106678208.

The previous prime is 276220937. The next prime is 276220979. The reversal of 276220940 is 49022672.

It is a junction number, because it is equal to n+sod(n) for n = 276220897 and 276220906.

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, 237542 + ... + 238701.

It is an arithmetic number, because the mean of its divisors is an integer number (25002810).

Almost surely, 2^276220940 is an apocalyptic number.

276220940 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

276220940 is an abundant number, since it is smaller than the sum of its proper divisors (323846500).

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

276220940 is a wasteful number, since it uses less digits than its factorization.

276220940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 476281 (or 476279 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 276220940 is about 16619.8959082180. The cubic root of 276220940 is about 651.2566930370.

The spelling of 276220940 in words is "two hundred seventy-six million, two hundred twenty thousand, nine hundred forty".