276421343 has 8 divisors (see below), whose sum is σ = 319289040. Its totient is φ = 236510080.

The previous prime is 276421333. The next prime is 276421357. The reversal of 276421343 is 343124672.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 276421343 - 2⁶ = 276421279 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (276421333) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 738908 + ... + 739281.

It is an arithmetic number, because the mean of its divisors is an integer number (39911130).

Almost surely, 2^276421343 is an apocalyptic number.

276421343 is a deficient number, since it is larger than the sum of its proper divisors (42867697).

276421343 is a wasteful number, since it uses less digits than its factorization.

276421343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1478217.

The product of its digits is 24192, while the sum is 32.

The square root of 276421343 is about 16625.9238239564. The cubic root of 276421343 is about 651.4141542399.

The spelling of 276421343 in words is "two hundred seventy-six million, four hundred twenty-one thousand, three hundred forty-three".