544922640 has 120 divisors (see below), whose sum is σ = 1897878528. Its totient is φ = 145307520.

The previous prime is 544922621. The next prime is 544922659. The reversal of 544922640 is 46229445.

544922640 is a `hidden beast` number, since 5 + 4 + 4 + 9 + 2 + 2 + 640 = 666.

It is an interprime number because it is at equal distance from previous prime (544922621) and next prime (544922659).

It is a tau number, because it is divible by the number of its divisors (120).

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 = 544922595 and 544922604.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5425 + ... + 33455.

Almost surely, 2^544922640 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 544922640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (948939264).

544922640 is an abundant number, since it is smaller than the sum of its proper divisors (1352955888).

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

544922640 is a wasteful number, since it uses less digits than its factorization.

544922640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28059 (or 28041 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 36.

The square root of 544922640 is about 23343.5781318974. The cubic root of 544922640 is about 816.7922668592.

The spelling of 544922640 in words is "five hundred forty-four million, nine hundred twenty-two thousand, six hundred forty".