72236472 has 64 divisors (see below), whose sum is σ = 225158400. Its totient is φ = 18762240.

The previous prime is 72236471. The next prime is 72236497. The reversal of 72236472 is 27463227.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72236471) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17697 + ... + 21392.

It is an arithmetic number, because the mean of its divisors is an integer number (3518100).

Almost surely, 2^72236472 is an apocalyptic number.

It is an amenable number.

72236472 is an abundant number, since it is smaller than the sum of its proper divisors (152921928).

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

72236472 is a wasteful number, since it uses less digits than its factorization.

72236472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39116 (or 39112 counting only the distinct ones).

The product of its digits is 28224, while the sum is 33.

The square root of 72236472 is about 8499.2041980411. The cubic root of 72236472 is about 416.4717128152.

Adding to 72236472 its reverse (27463227), we get a palindrome (99699699).

It can be divided in two parts, 7223 and 6472, that added together give a triangular number (13695 = T₁₆₅).

The spelling of 72236472 in words is "seventy-two million, two hundred thirty-six thousand, four hundred seventy-two".