42025144 has 48 divisors (see below), whose sum is σ = 93653280. Its totient is φ = 17619840.

The previous prime is 42025129. The next prime is 42025187. The reversal of 42025144 is 44152024.

It is a happy number.

It is a super-2 number, since 2×42025144² = 3532225456441472, which contains 22 as substring.

It is a congruent number.

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, 17284 + ... + 19564.

It is an arithmetic number, because the mean of its divisors is an integer number (1951110).

Almost surely, 2^42025144 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42025144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46826640).

42025144 is an abundant number, since it is smaller than the sum of its proper divisors (51628136).

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

42025144 is a wasteful number, since it uses less digits than its factorization.

42025144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2348 (or 2337 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 22.

The square root of 42025144 is about 6482.6803098718. The cubic root of 42025144 is about 347.6720166937.

Adding to 42025144 its reverse (44152024), we get a palindrome (86177168).

It can be divided in two parts, 42025 and 144, that multiplied together give a square (6051600 = 2460²).

The spelling of 42025144 in words is "forty-two million, twenty-five thousand, one hundred forty-four".