676642042 has 4 divisors (see below), whose sum is σ = 1014963066. Its totient is φ = 338321020.

The previous prime is 676642039. The next prime is 676642069. The reversal of 676642042 is 240246676.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 396447921 + 280194121 = 19911^2 + 16739^2 .

It is a junction number, because it is equal to n+sod(n) for n = 676641992 and 676642010.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 169160509 + ... + 169160512.

Almost surely, 2^676642042 is an apocalyptic number.

676642042 is a deficient number, since it is larger than the sum of its proper divisors (338321024).

676642042 is a wasteful number, since it uses less digits than its factorization.

676642042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 338321023.

The product of its (nonzero) digits is 96768, while the sum is 37.

The square root of 676642042 is about 26012.3440312479. The cubic root of 676642042 is about 877.9160580324.

The spelling of 676642042 in words is "six hundred seventy-six million, six hundred forty-two thousand, forty-two".