544398421 has 8 divisors (see below), whose sum is σ = 623209664. Its totient is φ = 465847200.

The previous prime is 544398419. The next prime is 544398461. The reversal of 544398421 is 124893445.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 544398421 - 2¹ = 544398419 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (544398461) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60495 + ... + 68908.

It is an arithmetic number, because the mean of its divisors is an integer number (77901208).

Almost surely, 2^544398421 is an apocalyptic number.

It is an amenable number.

544398421 is a deficient number, since it is larger than the sum of its proper divisors (78811243).

544398421 is a wasteful number, since it uses less digits than its factorization.

544398421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130011.

The product of its digits is 138240, while the sum is 40.

The square root of 544398421 is about 23332.3470958239. The cubic root of 544398421 is about 816.5302630623.

The spelling of 544398421 in words is "five hundred forty-four million, three hundred ninety-eight thousand, four hundred twenty-one".