42404010431 has 4 divisors (see below), whose sum is σ = 42413267472. Its totient is φ = 42394753392.

The previous prime is 42404010403. The next prime is 42404010443. The reversal of 42404010431 is 13401040424.

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 42404010431 - 2¹⁰ = 42404009407 is a prime.

It is a super-2 number, since 2×42404010431² (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 = 42404010397 and 42404010406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42404010461) 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, 4621646 + ... + 4630811.

It is an arithmetic number, because the mean of its divisors is an integer number (10603316868).

Almost surely, 2^42404010431 is an apocalyptic number.

42404010431 is a deficient number, since it is larger than the sum of its proper divisors (9257041).

42404010431 is an equidigital number, since it uses as much as digits as its factorization.

42404010431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9257040.

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

Adding to 42404010431 its reverse (13401040424), we get a palindrome (55805050855).

The spelling of 42404010431 in words is "forty-two billion, four hundred four million, ten thousand, four hundred thirty-one".