276020421 has 8 divisors (see below), whose sum is σ = 369607680. Its totient is φ = 183223392.

The previous prime is 276020419. The next prime is 276020431. The reversal of 276020421 is 124020672.

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

It is not a de Polignac number, because 276020421 - 2¹ = 276020419 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 276020391 and 276020400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (276020411) 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, 196741 + ... + 198138.

It is an arithmetic number, because the mean of its divisors is an integer number (46200960).

Almost surely, 2^276020421 is an apocalyptic number.

It is an amenable number.

276020421 is a deficient number, since it is larger than the sum of its proper divisors (93587259).

276020421 is a wasteful number, since it uses less digits than its factorization.

276020421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 395115.

The product of its (nonzero) digits is 1344, while the sum is 24.

The square root of 276020421 is about 16613.8623143446. The cubic root of 276020421 is about 651.0990644451.

The spelling of 276020421 in words is "two hundred seventy-six million, twenty thousand, four hundred twenty-one".