75143380 has 48 divisors (see below), whose sum is σ = 175440384. Its totient is φ = 26847360.

The previous prime is 75143339. The next prime is 75143389. The reversal of 75143380 is 8334157.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75143389) 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 15 ways as a sum of consecutive naturals, for example, 3399 + ... + 12721.

It is an arithmetic number, because the mean of its divisors is an integer number (3655008).

Almost surely, 2^75143380 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 75143380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (87720192).

75143380 is an abundant number, since it is smaller than the sum of its proper divisors (100297004).

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

75143380 is a wasteful number, since it uses less digits than its factorization.

75143380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9376 (or 9374 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 75143380 is about 8668.5281334261. The cubic root of 75143380 is about 421.9848979719.

The spelling of 75143380 in words is "seventy-five million, one hundred forty-three thousand, three hundred eighty".