75133432 has 64 divisors (see below), whose sum is σ = 162000000. Its totient is φ = 32350080.

The previous prime is 75133423. The next prime is 75133447. The reversal of 75133432 is 23433157.

It is a self number, because there is not a number n which added to its sum of digits gives 75133432.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 150319 + ... + 150817.

It is an arithmetic number, because the mean of its divisors is an integer number (2531250).

Almost surely, 2^75133432 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 75133432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81000000).

75133432 is an abundant number, since it is smaller than the sum of its proper divisors (86866568).

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

75133432 is a wasteful number, since it uses less digits than its factorization.

75133432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 604 (or 600 counting only the distinct ones).

The product of its digits is 7560, while the sum is 28.

The square root of 75133432 is about 8667.9543146004. The cubic root of 75133432 is about 421.9662753909.

Adding to 75133432 its reverse (23433157), we get a palindrome (98566589).

The spelling of 75133432 in words is "seventy-five million, one hundred thirty-three thousand, four hundred thirty-two".