72203032 has 16 divisors (see below), whose sum is σ = 147688200. Its totient is φ = 32819520.

The previous prime is 72202997. The next prime is 72203039. The reversal of 72203032 is 23030227.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72203039) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 410157 + ... + 410332.

Almost surely, 2^72203032 is an apocalyptic number.

It is an amenable number.

72203032 is an abundant number, since it is smaller than the sum of its proper divisors (75485168).

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

72203032 is a wasteful number, since it uses less digits than its factorization.

72203032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 820506 (or 820502 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 19.

The square root of 72203032 is about 8497.2367273132. The cubic root of 72203032 is about 416.4074379724.

Adding to 72203032 its reverse (23030227), we get a palindrome (95233259).

The spelling of 72203032 in words is "seventy-two million, two hundred three thousand, thirty-two".