276421504 has 64 divisors (see below), whose sum is σ = 575586000. Its totient is φ = 132063232.

The previous prime is 276421499. The next prime is 276421507. The reversal of 276421504 is 405124672.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (276421507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 419127 + ... + 419785.

Almost surely, 2^276421504 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 276421504, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (287793000).

276421504 is an abundant number, since it is smaller than the sum of its proper divisors (299164496).

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

276421504 is a wasteful number, since it uses less digits than its factorization.

276421504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 815 (or 803 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 31.

The square root of 276421504 is about 16625.9286657919. The cubic root of 276421504 is about 651.4142807107.

The spelling of 276421504 in words is "two hundred seventy-six million, four hundred twenty-one thousand, five hundred four".