276401005 has 8 divisors (see below), whose sum is σ = 346102272. Its totient is φ = 211506768.

The previous prime is 276400987. The next prime is 276401023. The reversal of 276401005 is 500104672.

It is an interprime number because it is at equal distance from previous prime (276400987) and next prime (276401023).

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 276401005 - 2⁷ = 276400877 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1201629 + ... + 1201858.

It is an arithmetic number, because the mean of its divisors is an integer number (43262784).

Almost surely, 2^276401005 is an apocalyptic number.

It is an amenable number.

276401005 is a deficient number, since it is larger than the sum of its proper divisors (69701267).

276401005 is a wasteful number, since it uses less digits than its factorization.

276401005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2403515.

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 276401005 is about 16625.3121775202. The cubic root of 276401005 is about 651.3981776805.

Adding to 276401005 its reverse (500104672), we get a palindrome (776505677).

The spelling of 276401005 in words is "two hundred seventy-six million, four hundred one thousand, five".