276681442 has 16 divisors (see below), whose sum is σ = 421169112. Its totient is φ = 136304640.

The previous prime is 276681437. The next prime is 276681469. The reversal of 276681442 is 244186672.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 135047641 + 141633801 = 11621^2 + 11901^2 .

It is a junction number, because it is equal to n+sod(n) for n = 276681395 and 276681404.

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, 42142 + ... + 48262.

Almost surely, 2^276681442 is an apocalyptic number.

276681442 is a deficient number, since it is larger than the sum of its proper divisors (144487670).

276681442 is a wasteful number, since it uses less digits than its factorization.

276681442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6453.

The product of its digits is 129024, while the sum is 40.

The square root of 276681442 is about 16633.7440764249. The cubic root of 276681442 is about 651.6184065040.

The spelling of 276681442 in words is "two hundred seventy-six million, six hundred eighty-one thousand, four hundred forty-two".