42430658 has 4 divisors (see below), whose sum is σ = 63645990. Its totient is φ = 21215328.

The previous prime is 42430651. The next prime is 42430669. The reversal of 42430658 is 85603424.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 28270489 + 14160169 = 5317^2 + 3763^2 .

It is not an unprimeable number, because it can be changed into a prime (42430651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10607663 + ... + 10607666.

Almost surely, 2^42430658 is an apocalyptic number.

42430658 is a deficient number, since it is larger than the sum of its proper divisors (21215332).

42430658 is a wasteful number, since it uses less digits than its factorization.

42430658 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21215331.

The product of its (nonzero) digits is 23040, while the sum is 32.

The square root of 42430658 is about 6513.8819455068. The cubic root of 42430658 is about 348.7867050262.

The spelling of 42430658 in words is "forty-two million, four hundred thirty thousand, six hundred fifty-eight".