276401222 has 8 divisors (see below), whose sum is σ = 417585000. Its totient is φ = 137206224.

The previous prime is 276401207. The next prime is 276401231. The reversal of 276401222 is 222104672.

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

It is a junction number, because it is equal to n+sod(n) for n = 276401191 and 276401200.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 496847 + ... + 497402.

It is an arithmetic number, because the mean of its divisors is an integer number (52198125).

Almost surely, 2^276401222 is an apocalyptic number.

276401222 is a deficient number, since it is larger than the sum of its proper divisors (141183778).

276401222 is a wasteful number, since it uses less digits than its factorization.

276401222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 994390.

The product of its (nonzero) digits is 2688, while the sum is 26.

The square root of 276401222 is about 16625.3187037121. The cubic root of 276401222 is about 651.3983481495.

Adding to 276401222 its reverse (222104672), we get a palindrome (498505894).

The spelling of 276401222 in words is "two hundred seventy-six million, four hundred one thousand, two hundred twenty-two".