75272432 has 20 divisors (see below), whose sum is σ = 146236920. Its totient is φ = 37533888.

The previous prime is 75272419. The next prime is 75272437. The reversal of 75272432 is 23427257.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75272437) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 143 + ... + 12270.

It is an arithmetic number, because the mean of its divisors is an integer number (7311846).

Almost surely, 2^75272432 is an apocalyptic number.

It is an amenable number.

75272432 is a deficient number, since it is larger than the sum of its proper divisors (70964488).

75272432 is a wasteful number, since it uses less digits than its factorization.

75272432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12800 (or 12794 counting only the distinct ones).

The product of its digits is 23520, while the sum is 32.

The square root of 75272432 is about 8675.9686490904. The cubic root of 75272432 is about 422.2263335190.

Adding to 75272432 its reverse (23427257), we get a palindrome (98699689).

The spelling of 75272432 in words is "seventy-five million, two hundred seventy-two thousand, four hundred thirty-two".