75441240 has 256 divisors, whose sum is σ = 304819200. Its totient is φ = 16201728.

The previous prime is 75441211. The next prime is 75441241. The reversal of 75441240 is 4214457.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75441241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 128227 + ... + 128813.

It is an arithmetic number, because the mean of its divisors is an integer number (1190700).

Almost surely, 2^75441240 is an apocalyptic number.

75441240 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 75441240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (152409600).

75441240 is an abundant number, since it is smaller than the sum of its proper divisors (229377960).

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

75441240 is a wasteful number, since it uses less digits than its factorization.

75441240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 631 (or 621 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 27.

The square root of 75441240 is about 8685.6916823014. The cubic root of 75441240 is about 422.5417299445.

Adding to 75441240 its reverse (4214457), we get a palindrome (79655697).

The spelling of 75441240 in words is "seventy-five million, four hundred forty-one thousand, two hundred forty".