276742272 has 32 divisors (see below), whose sum is σ = 735097680. Its totient is φ = 92247296.

The previous prime is 276742267. The next prime is 276742307. The reversal of 276742272 is 272247672.

It is a tau number, because it is divible by the number of its divisors (32).

It is a super-2 number, since 2×276742272² = 153172570223443968, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 276742272.

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, 359958 + ... + 360725.

Almost surely, 2^276742272 is an apocalyptic number.

It is an amenable number.

276742272 is an abundant number, since it is smaller than the sum of its proper divisors (458355408).

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

276742272 is an equidigital number, since it uses as much as digits as its factorization.

276742272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 720700 (or 720688 counting only the distinct ones).

The product of its digits is 131712, while the sum is 39.

The square root of 276742272 is about 16635.5724878947. The cubic root of 276742272 is about 651.6661570179. Note that the first 3 decimals are identical.

The spelling of 276742272 in words is "two hundred seventy-six million, seven hundred forty-two thousand, two hundred seventy-two".