276138500 has 48 divisors (see below), whose sum is σ = 657925632. Its totient is φ = 100412000.

The previous prime is 276138491. The next prime is 276138503. The reversal of 276138500 is 5831672.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (276138503) 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, 19604 + ... + 30603.

It is an arithmetic number, because the mean of its divisors is an integer number (13706784).

Almost surely, 2^276138500 is an apocalyptic number.

276138500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

276138500 is an abundant number, since it is smaller than the sum of its proper divisors (381787132).

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

276138500 is a wasteful number, since it uses less digits than its factorization.

276138500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50237 (or 50225 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 276138500 is about 16617.4155631975. The cubic root of 276138500 is about 651.1918959414.

The spelling of 276138500 in words is "two hundred seventy-six million, one hundred thirty-eight thousand, five hundred".