545657244 has 72 divisors (see below), whose sum is σ = 1460403840. Its totient is φ = 158151840.

The previous prime is 545657239. The next prime is 545657251. The reversal of 545657244 is 442756545.

It is a junction number, because it is equal to n+sod(n) for n = 545657196 and 545657205.

It is a congruent number.

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, 25227 + ... + 41565.

Almost surely, 2^545657244 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 545657244, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (730201920).

545657244 is an abundant number, since it is smaller than the sum of its proper divisors (914746596).

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

545657244 is a wasteful number, since it uses less digits than its factorization.

545657244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16391 (or 16378 counting only the distinct ones).

The product of its digits is 672000, while the sum is 42.

The square root of 545657244 is about 23359.3074383638. The cubic root of 545657244 is about 817.1591381653.

The spelling of 545657244 in words is "five hundred forty-five million, six hundred fifty-seven thousand, two hundred forty-four".