276450828 has 24 divisors (see below), whose sum is σ = 662486832. Its totient is φ = 89659584.

The previous prime is 276450799. The next prime is 276450833. The reversal of 276450828 is 828054672.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 276450828.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 310875 + ... + 311762.

It is an arithmetic number, because the mean of its divisors is an integer number (27603618).

Almost surely, 2^276450828 is an apocalyptic number.

It is an amenable number.

276450828 is an abundant number, since it is smaller than the sum of its proper divisors (386036004).

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

276450828 is a wasteful number, since it uses less digits than its factorization.

276450828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 622681 (or 622679 counting only the distinct ones).

The product of its (nonzero) digits is 215040, while the sum is 42.

The square root of 276450828 is about 16626.8105179556. The cubic root of 276450828 is about 651.4373148532.

The spelling of 276450828 in words is "two hundred seventy-six million, four hundred fifty thousand, eight hundred twenty-eight".