42432008 has 8 divisors (see below), whose sum is σ = 79560030. Its totient is φ = 21216000.

The previous prime is 42432001. The next prime is 42432029. The reversal of 42432008 is 80023424.

It can be written as a sum of positive squares in only one way, i.e., 35022724 + 7409284 = 5918^2 + 2722^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (42432001) 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, 2651993 + ... + 2652008.

Almost surely, 2^42432008 is an apocalyptic number.

It is an amenable number.

42432008 is a deficient number, since it is larger than the sum of its proper divisors (37128022).

42432008 is a wasteful number, since it uses less digits than its factorization.

42432008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5304007 (or 5304003 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 23.

The square root of 42432008 is about 6513.9855695265. The cubic root of 42432008 is about 348.7904040580.

The spelling of 42432008 in words is "forty-two million, four hundred thirty-two thousand, eight".