321418044 has 72 divisors (see below), whose sum is σ = 869826048. Its totient is φ = 103673520.

The previous prime is 321418037. The next prime is 321418061. The reversal of 321418044 is 440814123.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 321417999 and 321418017.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 24799 + ... + 35465.

Almost surely, 2^321418044 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 321418044, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (434913024).

321418044 is an abundant number, since it is smaller than the sum of its proper divisors (548408004).

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

321418044 is a wasteful number, since it uses less digits than its factorization.

321418044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10717 (or 10703 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 27.

The square root of 321418044 is about 17928.1355416563. The cubic root of 321418044 is about 684.9992320662. Note that the first 3 decimals are identical.

The spelling of 321418044 in words is "three hundred twenty-one million, four hundred eighteen thousand, forty-four".