276213066 has 16 divisors (see below), whose sum is σ = 567357024. Its totient is φ = 89582544.

The previous prime is 276213001. The next prime is 276213073. The reversal of 276213066 is 660312672.

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, 621880 + ... + 622323.

It is an arithmetic number, because the mean of its divisors is an integer number (35459814).

Almost surely, 2^276213066 is an apocalyptic number.

276213066 is an abundant number, since it is smaller than the sum of its proper divisors (291143958).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

276213066 is a wasteful number, since it uses less digits than its factorization.

276213066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1244245.

The product of its (nonzero) digits is 18144, while the sum is 33.

The square root of 276213066 is about 16619.6590217730. The cubic root of 276213066 is about 651.2505047011.

The spelling of 276213066 in words is "two hundred seventy-six million, two hundred thirteen thousand, sixty-six".