42025122 has 32 divisors (see below), whose sum is σ = 98884800. Its totient is φ = 13184064.

The previous prime is 42025111. The next prime is 42025127. The reversal of 42025122 is 22152024.

It is a super-2 number, since 2×42025122² = 3532221758229768, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 42025095 and 42025104.

It is not an unprimeable number, because it can be changed into a prime (42025127) 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 15 ways as a sum of consecutive naturals, for example, 21972 + ... + 23807.

It is an arithmetic number, because the mean of its divisors is an integer number (3090150).

Almost surely, 2^42025122 is an apocalyptic number.

42025122 is an abundant number, since it is smaller than the sum of its proper divisors (56859678).

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

42025122 is a wasteful number, since it uses less digits than its factorization.

42025122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45807 (or 45801 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

The square root of 42025122 is about 6482.6786130426. The cubic root of 42025122 is about 347.6719560254.

Adding to 42025122 its reverse (22152024), we get a palindrome (64177146).

The spelling of 42025122 in words is "forty-two million, twenty-five thousand, one hundred twenty-two".