276138830 has 32 divisors (see below), whose sum is σ = 546403968. Its totient is φ = 99642400.

The previous prime is 276138791. The next prime is 276138833. The reversal of 276138830 is 38831672.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (276138833) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4829 + ... + 23991.

It is an arithmetic number, because the mean of its divisors is an integer number (17075124).

Almost surely, 2^276138830 is an apocalyptic number.

276138830 is a deficient number, since it is larger than the sum of its proper divisors (270265138).

276138830 is a wasteful number, since it uses less digits than its factorization.

276138830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19312.

The product of its (nonzero) digits is 48384, while the sum is 38.

The square root of 276138830 is about 16617.4254925364. The cubic root of 276138830 is about 651.1921553441.

The spelling of 276138830 in words is "two hundred seventy-six million, one hundred thirty-eight thousand, eight hundred thirty".