421416260044 has 24 divisors (see below), whose sum is σ = 794956217328. Its totient is φ = 194316469440.

The previous prime is 421416260029. The next prime is 421416260077. The reversal of 421416260044 is 440062614124.

It is a junction number, because it is equal to n+sod(n) for n = 421416259991 and 421416260009.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3763942 + ... + 3874285.

It is an arithmetic number, because the mean of its divisors is an integer number (33123175722).

Almost surely, 2^421416260044 is an apocalyptic number.

It is an amenable number.

421416260044 is a deficient number, since it is larger than the sum of its proper divisors (373539957284).

421416260044 is a wasteful number, since it uses less digits than its factorization.

421416260044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7639305 (or 7639303 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 34.

Adding to 421416260044 its reverse (440062614124), we get a palindrome (861478874168).

The spelling of 421416260044 in words is "four hundred twenty-one billion, four hundred sixteen million, two hundred sixty thousand, forty-four".