276367540 has 96 divisors (see below), whose sum is σ = 645765120. Its totient is φ = 98879616.

The previous prime is 276367537. The next prime is 276367549. The reversal of 276367540 is 45763672.

It is a junction number, because it is equal to n+sod(n) for n = 276367493 and 276367502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (276367549) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 900067 + ... + 900373.

It is an arithmetic number, because the mean of its divisors is an integer number (6726720).

Almost surely, 2^276367540 is an apocalyptic number.

276367540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 276367540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (322882560).

276367540 is an abundant number, since it is smaller than the sum of its proper divisors (369397580).

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

276367540 is a wasteful number, since it uses less digits than its factorization.

276367540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 461 (or 459 counting only the distinct ones).

The product of its (nonzero) digits is 211680, while the sum is 40.

The square root of 276367540 is about 16624.3056997879. The cubic root of 276367540 is about 651.3718874724.

The spelling of 276367540 in words is "two hundred seventy-six million, three hundred sixty-seven thousand, five hundred forty".