72269600 has 72 divisors (see below), whose sum is σ = 190026900. Its totient is φ = 26680320.

The previous prime is 72269599. The next prime is 72269609. The reversal of 72269600 is 696227.

It can be written as a sum of positive squares in 6 ways, for example, as 27164944 + 45104656 = 5212^2 + 6716^2 .

It is a Harshad number since it is a multiple of its sum of digits (32).

It is not an unprimeable number, because it can be changed into a prime (72269609) 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 11 ways as a sum of consecutive naturals, for example, 6926 + ... + 13874.

Almost surely, 2^72269600 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 72269600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (95013450).

72269600 is an abundant number, since it is smaller than the sum of its proper divisors (117757300).

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

72269600 is a wasteful number, since it uses less digits than its factorization.

72269600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6982 (or 6969 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 32.

The square root of 72269600 is about 8501.1528629945. The cubic root of 72269600 is about 416.5353684080.

The spelling of 72269600 in words is "seventy-two million, two hundred sixty-nine thousand, six hundred".