718134394 has 4 divisors (see below), whose sum is σ = 1077201594. Its totient is φ = 359067196.

The previous prime is 718134379. The next prime is 718134413. The reversal of 718134394 is 493431817.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 493431817 = 17 ⋅29025401.

It can be written as a sum of positive squares in only one way, i.e., 371988369 + 346146025 = 19287^2 + 18605^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 179533597 + ... + 179533600.

Almost surely, 2^718134394 is an apocalyptic number.

718134394 is a deficient number, since it is larger than the sum of its proper divisors (359067200).

718134394 is a wasteful number, since it uses less digits than its factorization.

718134394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 359067199.

The product of its digits is 72576, while the sum is 40.

The square root of 718134394 is about 26798.0296663766. The cubic root of 718134394 is about 895.5061560665.

The spelling of 718134394 in words is "seven hundred eighteen million, one hundred thirty-four thousand, three hundred ninety-four".