3172489402 has 4 divisors (see below), whose sum is σ = 4758734106. Its totient is φ = 1586244700.

The previous prime is 3172489381. The next prime is 3172489447. The reversal of 3172489402 is 2049842713.

3172489402 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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., 2812286961 + 360202441 = 53031^2 + 18979^2 .

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 793122349 + ... + 793122352.

Almost surely, 2^3172489402 is an apocalyptic number.

3172489402 is a deficient number, since it is larger than the sum of its proper divisors (1586244704).

3172489402 is a wasteful number, since it uses less digits than its factorization.

3172489402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1586244703.

The product of its (nonzero) digits is 96768, while the sum is 40.

The square root of 3172489402 is about 56324.8559873880. The cubic root of 3172489402 is about 1469.3775268771.

The spelling of 3172489402 in words is "three billion, one hundred seventy-two million, four hundred eighty-nine thousand, four hundred two".