24431402042 has 4 divisors (see below), whose sum is σ = 36647103066. Its totient is φ = 12215701020.

The previous prime is 24431401949. The next prime is 24431402053. The reversal of 24431402042 is 24020413442.

It is a happy number.

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., 24345672961 + 85729081 = 156031^2 + 9259^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6107850509 + ... + 6107850512.

Almost surely, 2^24431402042 is an apocalyptic number.

24431402042 is a deficient number, since it is larger than the sum of its proper divisors (12215701024).

24431402042 is a wasteful number, since it uses less digits than its factorization.

24431402042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12215701023.

The product of its (nonzero) digits is 6144, while the sum is 26.

Adding to 24431402042 its reverse (24020413442), we get a palindrome (48451815484).

The spelling of 24431402042 in words is "twenty-four billion, four hundred thirty-one million, four hundred two thousand, forty-two".