494225637 has 4 divisors (see below), whose sum is σ = 658967520. Its totient is φ = 329483756.

The previous prime is 494225629. The next prime is 494225647. The reversal of 494225637 is 736522494.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 494225637 - 2³ = 494225629 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (494225647) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 82370937 + ... + 82370942.

It is an arithmetic number, because the mean of its divisors is an integer number (164741880).

Almost surely, 2^494225637 is an apocalyptic number.

It is an amenable number.

494225637 is a deficient number, since it is larger than the sum of its proper divisors (164741883).

494225637 is a wasteful number, since it uses less digits than its factorization.

494225637 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164741882.

The product of its digits is 362880, while the sum is 42.

The square root of 494225637 is about 22231.1861356969. The cubic root of 494225637 is about 790.6332779357.

The spelling of 494225637 in words is "four hundred ninety-four million, two hundred twenty-five thousand, six hundred thirty-seven".