75433240 has 32 divisors (see below), whose sum is σ = 172121760. Its totient is φ = 29747200.

The previous prime is 75433231. The next prime is 75433243. The reversal of 75433240 is 4233457.

It is a junction number, because it is equal to n+sod(n) for n = 75433199 and 75433208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75433243) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10441 + ... + 16120.

It is an arithmetic number, because the mean of its divisors is an integer number (5378805).

Almost surely, 2^75433240 is an apocalyptic number.

It is an amenable number.

75433240 is an abundant number, since it is smaller than the sum of its proper divisors (96688520).

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

75433240 is a wasteful number, since it uses less digits than its factorization.

75433240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26643 (or 26639 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 28.

The square root of 75433240 is about 8685.2311425776. The cubic root of 75433240 is about 422.5267935811.

Adding to 75433240 its reverse (4233457), we get a palindrome (79666697).

The spelling of 75433240 in words is "seventy-five million, four hundred thirty-three thousand, two hundred forty".