492213639 has 16 divisors (see below), whose sum is σ = 720864000. Its totient is φ = 297354816.

The previous prime is 492213611. The next prime is 492213641. The reversal of 492213639 is 936312294.

It is not a de Polignac number, because 492213639 - 2⁷ = 492213511 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 492213597 and 492213606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (492213439) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 186414 + ... + 189035.

It is an arithmetic number, because the mean of its divisors is an integer number (45054000).

Almost surely, 2^492213639 is an apocalyptic number.

492213639 is a deficient number, since it is larger than the sum of its proper divisors (228650361).

492213639 is a wasteful number, since it uses less digits than its factorization.

492213639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 375494.

The product of its digits is 69984, while the sum is 39.

The square root of 492213639 is about 22185.8882851239. Note that the first 3 decimals coincide. The cubic root of 492213639 is about 789.5589264606.

The spelling of 492213639 in words is "four hundred ninety-two million, two hundred thirteen thousand, six hundred thirty-nine".