42432405 has 16 divisors (see below), whose sum is σ = 68140224. Its totient is φ = 22547840.

The previous prime is 42432389. The next prime is 42432407. The reversal of 42432405 is 50423424.

It is not a de Polignac number, because 42432405 - 2⁴ = 42432389 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42432407) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 819 + ... + 9248.

It is an arithmetic number, because the mean of its divisors is an integer number (4258764).

Almost surely, 2^42432405 is an apocalyptic number.

It is an amenable number.

42432405 is a deficient number, since it is larger than the sum of its proper divisors (25707819).

42432405 is a wasteful number, since it uses less digits than its factorization.

42432405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10356.

The product of its (nonzero) digits is 3840, while the sum is 24.

The square root of 42432405 is about 6514.0160423505. The cubic root of 42432405 is about 348.7914918325.

Adding to 42432405 its reverse (50423424), we get a palindrome (92855829).

The spelling of 42432405 in words is "forty-two million, four hundred thirty-two thousand, four hundred five".