544263840 has 192 divisors, whose sum is σ = 2017249920. Its totient is φ = 136581120.

The previous prime is 544263827. The next prime is 544263871. The reversal of 544263840 is 48362445.

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

It is a junction number, because it is equal to n+sod(n) for n = 544263795 and 544263804.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 69735 + ... + 77145.

It is an arithmetic number, because the mean of its divisors is an integer number (10506510).

Almost surely, 2^544263840 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 544263840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1008624960).

544263840 is an abundant number, since it is smaller than the sum of its proper divisors (1472986080).

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

544263840 is a wasteful number, since it uses less digits than its factorization.

544263840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7452 (or 7438 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 36.

The square root of 544263840 is about 23329.4629170926. The cubic root of 544263840 is about 816.4629725685.

The spelling of 544263840 in words is "five hundred forty-four million, two hundred sixty-three thousand, eight hundred forty".