72203432 has 32 divisors (see below), whose sum is σ = 155020800. Its totient is φ = 30884544.

The previous prime is 72203429. The next prime is 72203447. The reversal of 72203432 is 23430227.

It is a junction number, because it is equal to n+sod(n) for n = 72203398 and 72203407.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40169 + ... + 41927.

It is an arithmetic number, because the mean of its divisors is an integer number (4844400).

Almost surely, 2^72203432 is an apocalyptic number.

It is an amenable number.

72203432 is an abundant number, since it is smaller than the sum of its proper divisors (82817368).

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

72203432 is a wasteful number, since it uses less digits than its factorization.

72203432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2505 (or 2501 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 23.

The square root of 72203432 is about 8497.2602643440. The cubic root of 72203432 is about 416.4082069275.

Adding to 72203432 its reverse (23430227), we get a palindrome (95633659).

The spelling of 72203432 in words is "seventy-two million, two hundred three thousand, four hundred thirty-two".