3494738638 has 4 divisors (see below), whose sum is σ = 5242107960. Its totient is φ = 1747369318.

The previous prime is 3494738623. The next prime is 3494738677. The reversal of 3494738638 is 8368374943.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 873684658 + ... + 873684661.

It is an arithmetic number, because the mean of its divisors is an integer number (1310526990).

Almost surely, 2^3494738638 is an apocalyptic number.

3494738638 is a deficient number, since it is larger than the sum of its proper divisors (1747369322).

3494738638 is a wasteful number, since it uses less digits than its factorization.

3494738638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1747369321.

The product of its digits is 10450944, while the sum is 55.

The square root of 3494738638 is about 59116.3144825521. The cubic root of 3494738638 is about 1517.5333142186.

The spelling of 3494738638 in words is "three billion, four hundred ninety-four million, seven hundred thirty-eight thousand, six hundred thirty-eight".