276427320 has 128 divisors (see below), whose sum is σ = 904780800. Its totient is φ = 67152384.

The previous prime is 276427301. The next prime is 276427321. The reversal of 276427320 is 23724672.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (276427321) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 122119 + ... + 124361.

It is an arithmetic number, because the mean of its divisors is an integer number (7068600).

Almost surely, 2^276427320 is an apocalyptic number.

276427320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 276427320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (452390400).

276427320 is an abundant number, since it is smaller than the sum of its proper divisors (628353480).

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

276427320 is a wasteful number, since it uses less digits than its factorization.

276427320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2349 (or 2345 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 33.

The square root of 276427320 is about 16626.1035723948. The cubic root of 276427320 is about 651.4188493361.

The spelling of 276427320 in words is "two hundred seventy-six million, four hundred twenty-seven thousand, three hundred twenty".