42320000 has 120 divisors (see below), whose sum is σ = 110132715. Its totient is φ = 16192000.

The previous prime is 42319993. The next prime is 42320009. The reversal of 42320000 is 2324.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 3 ways, for example, as 9784384 + 32535616 = 3128^2 + 5704^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=4600.

It is not an unprimeable number, because it can be changed into a prime (42320009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 1839989 + ... + 1840011.

Almost surely, 2^42320000 is an apocalyptic number.

42320000 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42320000

42320000 is an abundant number, since it is smaller than the sum of its proper divisors (67812715).

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

42320000 is an frugal number, since it uses more digits than its factorization.

42320000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80 (or 30 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 11.

The square root of 42320000 is about 6505.3823869162. The cubic root of 42320000 is about 348.4832323157.

Adding to 42320000 its reverse (2324), we get a palindrome (42322324).

The spelling of 42320000 in words is "forty-two million, three hundred twenty thousand".