492634642 has 4 divisors (see below), whose sum is σ = 738951966. Its totient is φ = 246317320.

The previous prime is 492634591. The next prime is 492634643. The reversal of 492634642 is 246436294.

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., 369446841 + 123187801 = 19221^2 + 11099^2 .

It is a junction number, because it is equal to n+sod(n) for n = 492634595 and 492634604.

It is not an unprimeable number, because it can be changed into a prime (492634643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 123158659 + ... + 123158662.

Almost surely, 2^492634642 is an apocalyptic number.

492634642 is a deficient number, since it is larger than the sum of its proper divisors (246317324).

492634642 is a wasteful number, since it uses less digits than its factorization.

492634642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 246317323.

The product of its digits is 248832, while the sum is 40.

The square root of 492634642 is about 22195.3743379110. The cubic root of 492634642 is about 789.7839723373.

The spelling of 492634642 in words is "four hundred ninety-two million, six hundred thirty-four thousand, six hundred forty-two".