42024402331 has 4 divisors (see below), whose sum is σ = 44236213000. Its totient is φ = 39812591664.

The previous prime is 42024402323. The next prime is 42024402337. The reversal of 42024402331 is 13320442024.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 42024402331 - 2³ = 42024402323 is a prime.

It is a super-2 number, since 2×42024402331² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42024402296 and 42024402305.

It is not an unprimeable number, because it can be changed into a prime (42024402337) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1105905306 + ... + 1105905343.

It is an arithmetic number, because the mean of its divisors is an integer number (11059053250).

Almost surely, 2^42024402331 is an apocalyptic number.

42024402331 is a deficient number, since it is larger than the sum of its proper divisors (2211810669).

42024402331 is a wasteful number, since it uses less digits than its factorization.

42024402331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2211810668.

The product of its (nonzero) digits is 4608, while the sum is 25.

Adding to 42024402331 its reverse (13320442024), we get a palindrome (55344844355).

The spelling of 42024402331 in words is "forty-two billion, twenty-four million, four hundred two thousand, three hundred thirty-one".