421140201444 has 36 divisors (see below), whose sum is σ = 1082592048720. Its totient is φ = 138000743280.

The previous prime is 421140201413. The next prime is 421140201463. The reversal of 421140201444 is 444102041124.

It is a happy number.

421140201444 is a `hidden beast` number, since 4 + 2 + 1 + 14 + 0 + 201 + 444 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 99136342 + ... + 99140589.

Almost surely, 2^421140201444 is an apocalyptic number.

It is an amenable number.

421140201444 is an abundant number, since it is smaller than the sum of its proper divisors (661451847276).

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

421140201444 is a wasteful number, since it uses less digits than its factorization.

421140201444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198277000 (or 198276995 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 27.

Adding to 421140201444 its reverse (444102041124), we get a palindrome (865242242568).

The spelling of 421140201444 in words is "four hundred twenty-one billion, one hundred forty million, two hundred one thousand, four hundred forty-four".