276342489 has 16 divisors (see below), whose sum is σ = 416337600. Its totient is φ = 181104768.

The previous prime is 276342461. The next prime is 276342503. The reversal of 276342489 is 984243672.

276342489 is a `hidden beast` number, since 2 + 7 + 634 + 2 + 4 + 8 + 9 = 666.

It is not a de Polignac number, because 276342489 - 2⁹ = 276341977 is a prime.

It is not an unprimeable number, because it can be changed into a prime (276342589) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 85144 + ... + 88329.

It is an arithmetic number, because the mean of its divisors is an integer number (26021100).

Almost surely, 2^276342489 is an apocalyptic number.

It is an amenable number.

276342489 is a deficient number, since it is larger than the sum of its proper divisors (139995111).

276342489 is a wasteful number, since it uses less digits than its factorization.

276342489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173541 (or 173535 counting only the distinct ones).

The product of its digits is 580608, while the sum is 45.

The square root of 276342489 is about 16623.5522377138. The cubic root of 276342489 is about 651.3522059399.

The spelling of 276342489 in words is "two hundred seventy-six million, three hundred forty-two thousand, four hundred eighty-nine".