421234200444 has 24 divisors (see below), whose sum is σ = 1034610317440. Its totient is φ = 133021326384.

The previous prime is 421234200437. The next prime is 421234200451. The reversal of 421234200444 is 444002432124.

It is an interprime number because it is at equal distance from previous prime (421234200437) and next prime (421234200451).

It is a congruent number.

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, 923758984 + ... + 923759439.

Almost surely, 2^421234200444 is an apocalyptic number.

It is an amenable number.

421234200444 is an abundant number, since it is smaller than the sum of its proper divisors (613376116996).

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

421234200444 is a wasteful number, since it uses less digits than its factorization.

421234200444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1847518449 (or 1847518447 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 30.

Adding to 421234200444 its reverse (444002432124), we get a palindrome (865236632568).

The spelling of 421234200444 in words is "four hundred twenty-one billion, two hundred thirty-four million, two hundred thousand, four hundred forty-four".