716426642 has 4 divisors (see below), whose sum is σ = 1074639966. Its totient is φ = 358213320.

The previous prime is 716426629. The next prime is 716426651. The reversal of 716426642 is 246624617.

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., 451095121 + 265331521 = 21239^2 + 16289^2 .

It is a junction number, because it is equal to n+sod(n) for n = 716426596 and 716426605.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 179106659 + ... + 179106662.

Almost surely, 2^716426642 is an apocalyptic number.

716426642 is a deficient number, since it is larger than the sum of its proper divisors (358213324).

716426642 is a wasteful number, since it uses less digits than its factorization.

716426642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 358213323.

The product of its digits is 96768, while the sum is 38.

The square root of 716426642 is about 26766.1473133509. The cubic root of 716426642 is about 894.7957429493.

The spelling of 716426642 in words is "seven hundred sixteen million, four hundred twenty-six thousand, six hundred forty-two".