544521420 has 48 divisors (see below), whose sum is σ = 1694068320. Its totient is φ = 145205568.

The previous prime is 544521409. The next prime is 544521421. The reversal of 544521420 is 24125445.

544521420 is a `hidden beast` number, since 5 + 445 + 214 + 2 + 0 = 666.

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

It is not an unprimeable number, because it can be changed into a prime (544521421) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 503647 + ... + 504726.

It is an arithmetic number, because the mean of its divisors is an integer number (35293090).

Almost surely, 2^544521420 is an apocalyptic number.

It is an amenable number.

544521420 is an abundant number, since it is smaller than the sum of its proper divisors (1149546900).

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

544521420 is a wasteful number, since it uses less digits than its factorization.

544521420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1008391 (or 1008383 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 27.

The square root of 544521420 is about 23334.9827512257. The cubic root of 544521420 is about 816.5917528580.

Adding to 544521420 its reverse (24125445), we get a palindrome (568646865).

The spelling of 544521420 in words is "five hundred forty-four million, five hundred twenty-one thousand, four hundred twenty".