72241470 has 192 divisors, whose sum is σ = 231469056. Its totient is φ = 15863040.

The previous prime is 72241451. The next prime is 72241487. The reversal of 72241470 is 7414227.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

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 95 ways as a sum of consecutive naturals, for example, 527242 + ... + 527378.

It is an arithmetic number, because the mean of its divisors is an integer number (1205568).

Almost surely, 2^72241470 is an apocalyptic number.

72241470 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 72241470, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (115734528).

72241470 is an abundant number, since it is smaller than the sum of its proper divisors (159227586).

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

72241470 is a wasteful number, since it uses less digits than its factorization.

72241470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197 (or 185 counting only the distinct ones).

The product of its (nonzero) digits is 3136, while the sum is 27.

The square root of 72241470 is about 8499.4982204834. The cubic root of 72241470 is about 416.4813177399.

Adding to 72241470 its reverse (7414227), we get a palindrome (79655697).

The spelling of 72241470 in words is "seventy-two million, two hundred forty-one thousand, four hundred seventy".