42325220 has 36 divisors (see below), whose sum is σ = 103396860. Its totient is φ = 14511168.

The previous prime is 42325207. The next prime is 42325249. The reversal of 42325220 is 2252324.

It can be written as a sum of positive squares in 2 ways, for example, as 6421156 + 35904064 = 2534^2 + 5992^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 42325192 and 42325201.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20615 + ... + 22574.

It is an arithmetic number, because the mean of its divisors is an integer number (2872135).

Almost surely, 2^42325220 is an apocalyptic number.

It is an amenable number.

42325220 is an abundant number, since it is smaller than the sum of its proper divisors (61071640).

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

42325220 is a wasteful number, since it uses less digits than its factorization.

42325220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43212 (or 43203 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 20.

The square root of 42325220 is about 6505.7835807841. The cubic root of 42325220 is about 348.4975597235.

Adding to 42325220 its reverse (2252324), we get a palindrome (44577544).

The spelling of 42325220 in words is "forty-two million, three hundred twenty-five thousand, two hundred twenty".