276274640 has 40 divisors (see below), whose sum is σ = 643036968. Its totient is φ = 110389760.

The previous prime is 276274631. The next prime is 276274651. The reversal of 276274640 is 46472672.

It can be written as a sum of positive squares in 4 ways, for example, as 106337344 + 169937296 = 10312^2 + 13036^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 276274594 and 276274603.

It is a congruent number.

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, 127970 + ... + 130110.

Almost surely, 2^276274640 is an apocalyptic number.

276274640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

276274640 is an abundant number, since it is smaller than the sum of its proper divisors (366762328).

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

276274640 is a wasteful number, since it uses less digits than its factorization.

276274640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3767 (or 3761 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 38.

The square root of 276274640 is about 16621.5113632906. The cubic root of 276274640 is about 651.2988938182.

The spelling of 276274640 in words is "two hundred seventy-six million, two hundred seventy-four thousand, six hundred forty".