545994240 has 320 divisors, whose sum is σ = 1994015232. Its totient is φ = 126156800.

The previous prime is 545994173. The next prime is 545994277. The reversal of 545994240 is 42499545.

It is a tau number, because it is divible by the number of its divisors (320).

It is a super-2 number, since 2×545994240² = 596219420226355200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 545994192 and 545994201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1942900 + ... + 1943180.

Almost surely, 2^545994240 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 545994240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (997007616).

545994240 is an abundant number, since it is smaller than the sum of its proper divisors (1448020992).

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

545994240 is a wasteful number, since it uses less digits than its factorization.

545994240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 341 (or 325 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 42.

The square root of 545994240 is about 23366.5196381489. The cubic root of 545994240 is about 817.3273284180.

It can be divided in two parts, 5459 and 94240, that added together give a palindrome (99699).

The spelling of 545994240 in words is "five hundred forty-five million, nine hundred ninety-four thousand, two hundred forty".