276345644 has 12 divisors (see below), whose sum is σ = 504631344. Its totient is φ = 132165264.

The previous prime is 276345631. The next prime is 276345647. The reversal of 276345644 is 446543672.

It is not an unprimeable number, because it can be changed into a prime (276345647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1501787 + ... + 1501970.

It is an arithmetic number, because the mean of its divisors is an integer number (42052612).

Almost surely, 2^276345644 is an apocalyptic number.

It is an amenable number.

276345644 is a deficient number, since it is larger than the sum of its proper divisors (228285700).

276345644 is a wasteful number, since it uses less digits than its factorization.

276345644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3003784 (or 3003782 counting only the distinct ones).

The product of its digits is 483840, while the sum is 41.

The square root of 276345644 is about 16623.6471329248. The cubic root of 276345644 is about 651.3546847581.

The spelling of 276345644 in words is "two hundred seventy-six million, three hundred forty-five thousand, six hundred forty-four".