421041434040 has 96 divisors (see below), whose sum is σ = 1370048303520. Its totient is φ = 112141211904.

The previous prime is 421041434027. The next prime is 421041434041. The reversal of 421041434040 is 40434140124.

421041434040 is a `hidden beast` number, since 4 + 210 + 4 + 1 + 43 + 404 + 0 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 421041433995 and 421041434013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421041434041) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 414267 + ... + 1006826.

It is an arithmetic number, because the mean of its divisors is an integer number (14271336495).

Almost surely, 2^421041434040 is an apocalyptic number.

421041434040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

421041434040 is an abundant number, since it is smaller than the sum of its proper divisors (949006869480).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

421041434040 is a wasteful number, since it uses less digits than its factorization.

421041434040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1421933 (or 1421926 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 27.

Adding to 421041434040 its reverse (40434140124), we get a palindrome (461475574164).

The spelling of 421041434040 in words is "four hundred twenty-one billion, forty-one million, four hundred thirty-four thousand, forty".