545542240 has 96 divisors (see below), whose sum is σ = 1373972544. Its totient is φ = 203980800.

The previous prime is 545542237. The next prime is 545542243. The reversal of 545542240 is 42245545.

It is an interprime number because it is at equal distance from previous prime (545542237) and next prime (545542243).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (545542243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 453640 + ... + 454840.

It is an arithmetic number, because the mean of its divisors is an integer number (14312214).

Almost surely, 2^545542240 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 545542240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (686986272).

545542240 is an abundant number, since it is smaller than the sum of its proper divisors (828430304).

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

545542240 is a wasteful number, since it uses less digits than its factorization.

545542240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1400 (or 1392 counting only the distinct ones).

The product of its (nonzero) digits is 32000, while the sum is 31.

The square root of 545542240 is about 23356.8456774454. The cubic root of 545542240 is about 817.1017253397.

Adding to 545542240 its reverse (42245545), we get a palindrome (587787785).

The spelling of 545542240 in words is "five hundred forty-five million, five hundred forty-two thousand, two hundred forty".