276382428 has 24 divisors (see below), whose sum is σ = 737020032. Its totient is φ = 78966384.

The previous prime is 276382411. The next prime is 276382429. The reversal of 276382428 is 824283672.

It is a super-3 number, since 3×276382428³ (a number of 26 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a self number, because there is not a number n which added to its sum of digits gives 276382428.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (276382429) 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, 1645050 + ... + 1645217.

It is an arithmetic number, because the mean of its divisors is an integer number (30709168).

Almost surely, 2^276382428 is an apocalyptic number.

276382428 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

276382428 is an abundant number, since it is smaller than the sum of its proper divisors (460637604).

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

276382428 is a wasteful number, since it uses less digits than its factorization.

276382428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3290281 (or 3290279 counting only the distinct ones).

The product of its digits is 258048, while the sum is 42.

The square root of 276382428 is about 16624.7534718564. The cubic root of 276382428 is about 651.3835837936.

The spelling of 276382428 in words is "two hundred seventy-six million, three hundred eighty-two thousand, four hundred twenty-eight".