479297642 has 4 divisors (see below), whose sum is σ = 718946466. Its totient is φ = 239648820.

The previous prime is 479297627. The next prime is 479297647. The reversal of 479297642 is 246792974.

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., 309021241 + 170276401 = 17579^2 + 13049^2 .

It is not an unprimeable number, because it can be changed into a prime (479297647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 119824409 + ... + 119824412.

Almost surely, 2^479297642 is an apocalyptic number.

479297642 is a deficient number, since it is larger than the sum of its proper divisors (239648824).

479297642 is a wasteful number, since it uses less digits than its factorization.

479297642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239648823.

The product of its digits is 1524096, while the sum is 50.

The square root of 479297642 is about 21892.8673772989. The cubic root of 479297642 is about 782.5914475629.

The spelling of 479297642 in words is "four hundred seventy-nine million, two hundred ninety-seven thousand, six hundred forty-two".