72426448 has 60 divisors (see below), whose sum is σ = 150858400. Its totient is φ = 33663168.

The previous prime is 72426437. The next prime is 72426503. The reversal of 72426448 is 84462427.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 363853 + ... + 364051.

Almost surely, 2^72426448 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 72426448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (75429200).

72426448 is an abundant number, since it is smaller than the sum of its proper divisors (78431952).

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

72426448 is a wasteful number, since it uses less digits than its factorization.

72426448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 296 (or 267 counting only the distinct ones).

The product of its digits is 86016, while the sum is 37.

The square root of 72426448 is about 8510.3729648001. The cubic root of 72426448 is about 416.8364887135.

It can be divided in two parts, 724 and 26448, that added together give a palindrome (27172).

The spelling of 72426448 in words is "seventy-two million, four hundred twenty-six thousand, four hundred forty-eight".