421533305044 has 12 divisors (see below), whose sum is σ = 737867594464. Its totient is φ = 210713992344.

The previous prime is 421533305021. The next prime is 421533305047. The reversal of 421533305044 is 440503335124.

It is a happy number.

It is a super-2 number, since 2×421533305044² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421533305047) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13147032 + ... + 13179055.

Almost surely, 2^421533305044 is an apocalyptic number.

It is an amenable number.

421533305044 is a deficient number, since it is larger than the sum of its proper divisors (316334289420).

421533305044 is a wasteful number, since it uses less digits than its factorization.

421533305044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26330094 (or 26330092 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 34.

The spelling of 421533305044 in words is "four hundred twenty-one billion, five hundred thirty-three million, three hundred five thousand, forty-four".