421401242004 has 12 divisors (see below), whose sum is σ = 983269564704. Its totient is φ = 140467080664.

The previous prime is 421401241991. The next prime is 421401242027. The reversal of 421401242004 is 400242104124.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17558385072 + ... + 17558385095.

It is an arithmetic number, because the mean of its divisors is an integer number (81939130392).

Almost surely, 2^421401242004 is an apocalyptic number.

It is an amenable number.

421401242004 is an abundant number, since it is smaller than the sum of its proper divisors (561868322700).

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

421401242004 is a wasteful number, since it uses less digits than its factorization.

421401242004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35116770174 (or 35116770172 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 24.

Adding to 421401242004 its reverse (400242104124), we get a palindrome (821643346128).

The spelling of 421401242004 in words is "four hundred twenty-one billion, four hundred one million, two hundred forty-two thousand, four".