544381380 has 36 divisors (see below), whose sum is σ = 1651290732. Its totient is φ = 145168320.

The previous prime is 544381379. The next prime is 544381399. The reversal of 544381380 is 83183445.

544381380 is a `hidden beast` number, since 544 + 3 + 81 + 38 + 0 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 366799104 + 177582276 = 19152^2 + 13326^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1511991 + ... + 1512350.

It is an arithmetic number, because the mean of its divisors is an integer number (45869187).

Almost surely, 2^544381380 is an apocalyptic number.

It is an amenable number.

544381380 is an abundant number, since it is smaller than the sum of its proper divisors (1106909352).

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

544381380 is a wasteful number, since it uses less digits than its factorization.

544381380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3024356 (or 3024351 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 36.

The square root of 544381380 is about 23331.9819132452. The cubic root of 544381380 is about 816.5217431764.

It can be divided in two parts, 544 and 381380, that added together give a square (381924 = 618²).

The spelling of 544381380 in words is "five hundred forty-four million, three hundred eighty-one thousand, three hundred eighty".