42430130 has 16 divisors (see below), whose sum is σ = 80867160. Its totient is φ = 15973632.

The previous prime is 42430117. The next prime is 42430139. The reversal of 42430130 is 3103424.

It can be written as a sum of positive squares in 4 ways, for example, as 36808489 + 5621641 = 6067^2 + 2371^2 .

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a junction number, because it is equal to n+sod(n) for n = 42430099 and 42430108.

It is not an unprimeable number, because it can be changed into a prime (42430139) 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, 124625 + ... + 124964.

Almost surely, 2^42430130 is an apocalyptic number.

42430130 is a deficient number, since it is larger than the sum of its proper divisors (38437030).

42430130 is a wasteful number, since it uses less digits than its factorization.

42430130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 249613.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 42430130 is about 6513.8414165529. The cubic root of 42430130 is about 348.7852582725.

Adding to 42430130 its reverse (3103424), we get a palindrome (45533554).

The spelling of 42430130 in words is "forty-two million, four hundred thirty thousand, one hundred thirty".