42126430 has 16 divisors (see below), whose sum is σ = 76896864. Its totient is φ = 16612960.

The previous prime is 42126389. The next prime is 42126443. The reversal of 42126430 is 3462124.

It is a happy number.

It is a super-2 number, since 2×42126430² = 3549272209089800, 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 7 ways as a sum of consecutive naturals, for example, 28957 + ... + 30376.

It is an arithmetic number, because the mean of its divisors is an integer number (4806054).

Almost surely, 2^42126430 is an apocalyptic number.

42126430 is a deficient number, since it is larger than the sum of its proper divisors (34770434).

42126430 is a wasteful number, since it uses less digits than its factorization.

42126430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59411.

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 42126430 is about 6490.4876550225. The cubic root of 42126430 is about 347.9511040211.

Adding to 42126430 its reverse (3462124), we get a palindrome (45588554).

The spelling of 42126430 in words is "forty-two million, one hundred twenty-six thousand, four hundred thirty".