42430330 has 16 divisors (see below), whose sum is σ = 76519080. Its totient is φ = 16940032.

The previous prime is 42430327. The next prime is 42430357. The reversal of 42430330 is 3303424.

It can be written as a sum of positive squares in 4 ways, for example, as 22743361 + 19686969 = 4769^2 + 4437^2 .

It is a junction number, because it is equal to n+sod(n) for n = 42430298 and 42430307.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1962 + ... + 9418.

Almost surely, 2^42430330 is an apocalyptic number.

42430330 is a deficient number, since it is larger than the sum of its proper divisors (34088750).

42430330 is a wasteful number, since it uses less digits than its factorization.

42430330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8033.

The product of its (nonzero) digits is 864, while the sum is 19.

The square root of 42430330 is about 6513.8567684591. The cubic root of 42430330 is about 348.7858062867.

Adding to 42430330 its reverse (3303424), we get a palindrome (45733754).

The spelling of 42430330 in words is "forty-two million, four hundred thirty thousand, three hundred thirty".