422720742 has 32 divisors (see below), whose sum is σ = 917015904. Its totient is φ = 129382400.

The previous prime is 422720741. The next prime is 422720747. The reversal of 422720742 is 247027224.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (422720741) 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, 46359 + ... + 54722.

It is an arithmetic number, because the mean of its divisors is an integer number (28656747).

Almost surely, 2^422720742 is an apocalyptic number.

422720742 is an abundant number, since it is smaller than the sum of its proper divisors (494295162).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

422720742 is a wasteful number, since it uses less digits than its factorization.

422720742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101144.

The product of its (nonzero) digits is 12544, while the sum is 30.

The square root of 422720742 is about 20560.1736860368. The cubic root of 422720742 is about 750.5008459078.

Adding to 422720742 its reverse (247027224), we get a palindrome (669747966).

The spelling of 422720742 in words is "four hundred twenty-two million, seven hundred twenty thousand, seven hundred forty-two".