72453432 has 32 divisors (see below), whose sum is σ = 181497600. Its totient is φ = 24102624.

The previous prime is 72453413. The next prime is 72453463. The reversal of 72453432 is 23435427.

It is a self number, because there is not a number n which added to its sum of digits gives 72453432.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 10369 + ... + 15887.

It is an arithmetic number, because the mean of its divisors is an integer number (5671800).

Almost surely, 2^72453432 is an apocalyptic number.

It is an amenable number.

72453432 is an abundant number, since it is smaller than the sum of its proper divisors (109044168).

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

72453432 is a wasteful number, since it uses less digits than its factorization.

72453432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6075 (or 6071 counting only the distinct ones).

The product of its digits is 20160, while the sum is 30.

The square root of 72453432 is about 8511.9581765890. The cubic root of 72453432 is about 416.8882493596. Note that the first 3 decimals are identical.

Adding to 72453432 its reverse (23435427), we get a palindrome (95888859).

The spelling of 72453432 in words is "seventy-two million, four hundred fifty-three thousand, four hundred thirty-two".