545624244 has 144 divisors (see below), whose sum is σ = 1547320320. Its totient is φ = 160729920.

The previous prime is 545624227. The next prime is 545624251. The reversal of 545624244 is 442426545.

545624244 is a `hidden beast` number, since 5 + 4 + 5 + 624 + 24 + 4 = 666.

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 = 545624199 and 545624208.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3347307 + ... + 3347469.

It is an arithmetic number, because the mean of its divisors is an integer number (10745280).

Almost surely, 2^545624244 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 545624244, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (773660160).

545624244 is an abundant number, since it is smaller than the sum of its proper divisors (1001696076).

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

545624244 is a wasteful number, since it uses less digits than its factorization.

545624244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 370 (or 365 counting only the distinct ones).

The product of its digits is 153600, while the sum is 36.

The square root of 545624244 is about 23358.6010711258. The cubic root of 545624244 is about 817.1426645790.

The spelling of 545624244 in words is "five hundred forty-five million, six hundred twenty-four thousand, two hundred forty-four".