421440234041 has 8 divisors (see below), whose sum is σ = 424686866880. Its totient is φ = 418202918352.

The previous prime is 421440234011. The next prime is 421440234067. The reversal of 421440234041 is 140432044124.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-421440234041 is a prime.

It is a super-2 number, since 2×421440234041² (a number of 24 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 = 421440233995 and 421440234013.

It is not an unprimeable number, because it can be changed into a prime (421440234001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2238461 + ... + 2419418.

It is an arithmetic number, because the mean of its divisors is an integer number (53085858360).

Almost surely, 2^421440234041 is an apocalyptic number.

It is an amenable number.

421440234041 is a deficient number, since it is larger than the sum of its proper divisors (3246632839).

421440234041 is a wasteful number, since it uses less digits than its factorization.

421440234041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4658575.

The product of its (nonzero) digits is 12288, while the sum is 29.

Adding to 421440234041 its reverse (140432044124), we get a palindrome (561872278165).

The spelling of 421440234041 in words is "four hundred twenty-one billion, four hundred forty million, two hundred thirty-four thousand, forty-one".