276906642 has 32 divisors (see below), whose sum is σ = 592106112. Its totient is φ = 86025984.

The previous prime is 276906629. The next prime is 276906671. The reversal of 276906642 is 246609672.

It is a happy number.

276906642 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 276906594 and 276906603.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2673 + ... + 23684.

It is an arithmetic number, because the mean of its divisors is an integer number (18503316).

Almost surely, 2^276906642 is an apocalyptic number.

276906642 is an abundant number, since it is smaller than the sum of its proper divisors (315199470).

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

276906642 is a wasteful number, since it uses less digits than its factorization.

276906642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26482.

The product of its (nonzero) digits is 217728, while the sum is 42.

The square root of 276906642 is about 16640.5120714478. The cubic root of 276906642 is about 651.7951496792.

The spelling of 276906642 in words is "two hundred seventy-six million, nine hundred six thousand, six hundred forty-two".