421334042010 has 128 divisors (see below), whose sum is σ = 1193293430784. Its totient is φ = 93170580480.

The previous prime is 421334041957. The next prime is 421334042053. The reversal of 421334042010 is 10240433124.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 28226409 + ... + 28241331.

It is an arithmetic number, because the mean of its divisors is an integer number (9322604928).

Almost surely, 2^421334042010 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 421334042010, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (596646715392).

421334042010 is an abundant number, since it is smaller than the sum of its proper divisors (771959388774).

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

421334042010 is a wasteful number, since it uses less digits than its factorization.

421334042010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19308.

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 421334042010 its reverse (10240433124), we get a palindrome (431574475134).

The spelling of 421334042010 in words is "four hundred twenty-one billion, three hundred thirty-four million, forty-two thousand, ten".