276206540 has 24 divisors (see below), whose sum is σ = 605253600. Its totient is φ = 105678848.

The previous prime is 276206533. The next prime is 276206549. The reversal of 276206540 is 45602672.

It is a junction number, because it is equal to n+sod(n) for n = 276206497 and 276206506.

It is not an unprimeable number, because it can be changed into a prime (276206549) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 299765 + ... + 300684.

It is an arithmetic number, because the mean of its divisors is an integer number (25218900).

Almost surely, 2^276206540 is an apocalyptic number.

276206540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

276206540 is an abundant number, since it is smaller than the sum of its proper divisors (329047060).

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

276206540 is a wasteful number, since it uses less digits than its factorization.

276206540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 600481 (or 600479 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 32.

The square root of 276206540 is about 16619.4626868621. The cubic root of 276206540 is about 651.2453756965.

The spelling of 276206540 in words is "two hundred seventy-six million, two hundred six thousand, five hundred forty".