276842421 has 32 divisors (see below), whose sum is σ = 432864000. Its totient is φ = 174518784.

The previous prime is 276842417. The next prime is 276842441. The reversal of 276842421 is 124248672.

It is not a de Polignac number, because 276842421 - 2² = 276842417 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (276842411) 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 31 ways as a sum of consecutive naturals, for example, 52765 + ... + 57773.

It is an arithmetic number, because the mean of its divisors is an integer number (13527000).

Almost surely, 2^276842421 is an apocalyptic number.

It is an amenable number.

276842421 is a deficient number, since it is larger than the sum of its proper divisors (156021579).

276842421 is a wasteful number, since it uses less digits than its factorization.

276842421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5130 (or 5124 counting only the distinct ones).

The product of its digits is 43008, while the sum is 36.

The square root of 276842421 is about 16638.5823013861. The cubic root of 276842421 is about 651.7447570361.

The spelling of 276842421 in words is "two hundred seventy-six million, eight hundred forty-two thousand, four hundred twenty-one".