72726496 has 48 divisors (see below), whose sum is σ = 149022720. Its totient is φ = 34899840.

The previous prime is 72726481. The next prime is 72726499. The reversal of 72726496 is 69462727.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72726499) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 165445 + ... + 165883.

It is an arithmetic number, because the mean of its divisors is an integer number (3104640).

Almost surely, 2^72726496 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 72726496, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (74511360).

72726496 is an abundant number, since it is smaller than the sum of its proper divisors (76296224).

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

72726496 is a wasteful number, since it uses less digits than its factorization.

72726496 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 647 (or 639 counting only the distinct ones).

The product of its digits is 254016, while the sum is 43.

The square root of 72726496 is about 8527.9831144298. The cubic root of 72726496 is about 417.4113184898.

The spelling of 72726496 in words is "seventy-two million, seven hundred twenty-six thousand, four hundred ninety-six".