75403332 has 48 divisors (see below), whose sum is σ = 196779520. Its totient is φ = 24968736.

The previous prime is 75403331. The next prime is 75403337. The reversal of 75403332 is 23330457.

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

It is a junction number, because it is equal to n+sod(n) for n = 75403296 and 75403305.

It is not an unprimeable number, because it can be changed into a prime (75403331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14733 + ... + 19179.

Almost surely, 2^75403332 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 75403332, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (98389760).

75403332 is an abundant number, since it is smaller than the sum of its proper divisors (121376188).

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

75403332 is a wasteful number, since it uses less digits than its factorization.

75403332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4617 (or 4609 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 27.

The square root of 75403332 is about 8683.5091984750. The cubic root of 75403332 is about 422.4709446308.

Adding to 75403332 its reverse (23330457), we get a palindrome (98733789).

The spelling of 75403332 in words is "seventy-five million, four hundred three thousand, three hundred thirty-two".