42625220 has 24 divisors (see below), whose sum is σ = 97651008. Its totient is φ = 15500000.

The previous prime is 42625207. The next prime is 42625223. The reversal of 42625220 is 2252624.

It is not an unprimeable number, because it can be changed into a prime (42625223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 96656 + ... + 97095.

It is an arithmetic number, because the mean of its divisors is an integer number (4068792).

Almost surely, 2^42625220 is an apocalyptic number.

It is an amenable number.

42625220 is an abundant number, since it is smaller than the sum of its proper divisors (55025788).

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

42625220 is a wasteful number, since it uses less digits than its factorization.

42625220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193771 (or 193769 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 42625220 is about 6528.7992770493. The cubic root of 42625220 is about 349.3190023678.

Adding to 42625220 its reverse (2252624), we get a palindrome (44877844).

The spelling of 42625220 in words is "forty-two million, six hundred twenty-five thousand, two hundred twenty".