42025430 has 16 divisors (see below), whose sum is σ = 75894624. Its totient is φ = 16754880.

The previous prime is 42025409. The next prime is 42025433. The reversal of 42025430 is 3452024.

It is a super-2 number, since 2×42025430² = 3532273533369800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42025433) 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, 3647 + ... + 9866.

It is an arithmetic number, because the mean of its divisors is an integer number (4743414).

Almost surely, 2^42025430 is an apocalyptic number.

42025430 is a deficient number, since it is larger than the sum of its proper divisors (33869194).

42025430 is a wasteful number, since it uses less digits than its factorization.

42025430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13831.

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

The square root of 42025430 is about 6482.7023686114. The cubic root of 42025430 is about 347.6728053800.

Adding to 42025430 its reverse (3452024), we get a palindrome (45477454).

The spelling of 42025430 in words is "forty-two million, twenty-five thousand, four hundred thirty".