276273540 has 36 divisors (see below), whose sum is σ = 838030284. Its totient is φ = 73672896.

The previous prime is 276273523. The next prime is 276273541. The reversal of 276273540 is 45372672.

It is a happy number.

276273540 is a `hidden beast` number, since 27 + 627 + 3 + 5 + 4 + 0 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 212401476 + 63872064 = 14574^2 + 7992^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 276273495 and 276273504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (276273541) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 767247 + ... + 767606.

It is an arithmetic number, because the mean of its divisors is an integer number (23278619).

Almost surely, 2^276273540 is an apocalyptic number.

276273540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

276273540 is an abundant number, since it is smaller than the sum of its proper divisors (561756744).

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

276273540 is a wasteful number, since it uses less digits than its factorization.

276273540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1534868 (or 1534863 counting only the distinct ones).

The product of its (nonzero) digits is 70560, while the sum is 36.

The square root of 276273540 is about 16621.4782736073. The cubic root of 276273540 is about 651.2980294250.

The spelling of 276273540 in words is "two hundred seventy-six million, two hundred seventy-three thousand, five hundred forty".