72103248 has 120 divisors (see below), whose sum is σ = 232360128. Its totient is φ = 20445696.

The previous prime is 72103247. The next prime is 72103249. The reversal of 72103248 is 84230127.

It is an interprime number because it is at equal distance from previous prime (72103247) and next prime (72103249).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72103243) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 234711 + ... + 235017.

Almost surely, 2^72103248 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 72103248, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (116180064).

72103248 is an abundant number, since it is smaller than the sum of its proper divisors (160256880).

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

72103248 is a wasteful number, since it uses less digits than its factorization.

72103248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 561 (or 552 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 72103248 is about 8491.3631414514. The cubic root of 72103248 is about 416.2155256463.

The spelling of 72103248 in words is "seventy-two million, one hundred three thousand, two hundred forty-eight".