72266448 has 80 divisors (see below), whose sum is σ = 193130496. Its totient is φ = 23272320.

The previous prime is 72266431. The next prime is 72266449. The reversal of 72266448 is 84466227.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72266449) 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, 232213 + ... + 232523.

Almost surely, 2^72266448 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 72266448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (96565248).

72266448 is an abundant number, since it is smaller than the sum of its proper divisors (120864048).

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

72266448 is a wasteful number, since it uses less digits than its factorization.

72266448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 472 (or 466 counting only the distinct ones).

The product of its digits is 129024, while the sum is 39.

The square root of 72266448 is about 8500.9674743526. The cubic root of 72266448 is about 416.5293126641.

The spelling of 72266448 in words is "seventy-two million, two hundred sixty-six thousand, four hundred forty-eight".