42420423320 has 64 divisors (see below), whose sum is σ = 104146884000. Its totient is φ = 15422049280.

The previous prime is 42420423251. The next prime is 42420423377. The reversal of 42420423320 is 2332402424.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 42420423320.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2586506 + ... + 2602854.

Almost surely, 2^42420423320 is an apocalyptic number.

42420423320 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

42420423320 is an abundant number, since it is smaller than the sum of its proper divisors (61726460680).

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

42420423320 is a wasteful number, since it uses less digits than its factorization.

42420423320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22268 (or 22264 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 26.

Adding to 42420423320 its reverse (2332402424), we get a palindrome (44752825744).

The spelling of 42420423320 in words is "forty-two billion, four hundred twenty million, four hundred twenty-three thousand, three hundred twenty".