276140020 has 48 divisors (see below), whose sum is σ = 633099600. Its totient is φ = 100555776.

The previous prime is 276140003. The next prime is 276140069. The reversal of 276140020 is 20041672.

It can be written as a sum of positive squares in 8 ways, for example, as 646416 + 275493604 = 804^2 + 16598^2 .

It is a junction number, because it is equal to n+sod(n) for n = 276139973 and 276140000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11706 + ... + 26254.

It is an arithmetic number, because the mean of its divisors is an integer number (13189575).

Almost surely, 2^276140020 is an apocalyptic number.

276140020 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 276140020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (316549800).

276140020 is an abundant number, since it is smaller than the sum of its proper divisors (356959580).

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

276140020 is a wasteful number, since it uses less digits than its factorization.

276140020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14644 (or 14642 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 22.

The square root of 276140020 is about 16617.4612982850. The cubic root of 276140020 is about 651.1930907643.

Adding to 276140020 its reverse (20041672), we get a palindrome (296181692).

The spelling of 276140020 in words is "two hundred seventy-six million, one hundred forty thousand, twenty".