544481646 has 16 divisors (see below), whose sum is σ = 1091394000. Its totient is φ = 181088768.

The previous prime is 544481629. The next prime is 544481653. The reversal of 544481646 is 646184445.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 544481598 and 544481607.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 98361 + ... + 103748.

It is an arithmetic number, because the mean of its divisors is an integer number (68212125).

Almost surely, 2^544481646 is an apocalyptic number.

544481646 is an abundant number, since it is smaller than the sum of its proper divisors (546912354).

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

544481646 is a wasteful number, since it uses less digits than its factorization.

544481646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202563.

The product of its digits is 368640, while the sum is 42.

The square root of 544481646 is about 23334.1304959066. The cubic root of 544481646 is about 816.5718700092.

The spelling of 544481646 in words is "five hundred forty-four million, four hundred eighty-one thousand, six hundred forty-six".