422747506 has 8 divisors (see below), whose sum is σ = 634487040. Its totient is φ = 211251828.

The previous prime is 422747497. The next prime is 422747513. The reversal of 422747506 is 605747224.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56566 + ... + 63601.

It is an arithmetic number, because the mean of its divisors is an integer number (79310880).

Almost surely, 2^422747506 is an apocalyptic number.

422747506 is a deficient number, since it is larger than the sum of its proper divisors (211739534).

422747506 is a wasteful number, since it uses less digits than its factorization.

422747506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121928.

The product of its (nonzero) digits is 94080, while the sum is 37.

The square root of 422747506 is about 20560.8245457229. The cubic root of 422747506 is about 750.5166845603.

The spelling of 422747506 in words is "four hundred twenty-two million, seven hundred forty-seven thousand, five hundred six".