276320484 has 240 divisors, whose sum is σ = 846945792. Its totient is φ = 77760000.

The previous prime is 276320483. The next prime is 276320501. The reversal of 276320484 is 484023672.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (276320483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 4529814 + ... + 4529874.

Almost surely, 2^276320484 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 276320484, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (423472896).

276320484 is an abundant number, since it is smaller than the sum of its proper divisors (570625308).

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

276320484 is a wasteful number, since it uses less digits than its factorization.

276320484 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160 (or 149 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 36.

The square root of 276320484 is about 16622.8903623888. The cubic root of 276320484 is about 651.3349165420.

The spelling of 276320484 in words is "two hundred seventy-six million, three hundred twenty thousand, four hundred eighty-four".