42407432 has 16 divisors (see below), whose sum is σ = 80408700. Its totient is φ = 20965120.

The previous prime is 42407429. The next prime is 42407441. The reversal of 42407432 is 23470424.

It can be written as a sum of positive squares in 2 ways, for example, as 40627876 + 1779556 = 6374^2 + 1334^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29069 + ... + 30492.

Almost surely, 2^42407432 is an apocalyptic number.

It is an amenable number.

42407432 is a deficient number, since it is larger than the sum of its proper divisors (38001268).

42407432 is a wasteful number, since it uses less digits than its factorization.

42407432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59656 (or 59652 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 26.

The square root of 42407432 is about 6512.0988935980. The cubic root of 42407432 is about 348.7230529489.

Adding to 42407432 its reverse (23470424), we get a palindrome (65877856).

The spelling of 42407432 in words is "forty-two million, four hundred seven thousand, four hundred thirty-two".