72237441 has 4 divisors (see below), whose sum is σ = 96316592. Its totient is φ = 48158292.

The previous prime is 72237433. The next prime is 72237443. The reversal of 72237441 is 14473227.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 72237441 - 2³ = 72237433 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 72237399 and 72237408.

It is not an unprimeable number, because it can be changed into a prime (72237443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12039571 + ... + 12039576.

It is an arithmetic number, because the mean of its divisors is an integer number (24079148).

Almost surely, 2^72237441 is an apocalyptic number.

It is an amenable number.

72237441 is a deficient number, since it is larger than the sum of its proper divisors (24079151).

72237441 is a wasteful number, since it uses less digits than its factorization.

72237441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24079150.

The product of its digits is 9408, while the sum is 30.

The square root of 72237441 is about 8499.2612031870. The cubic root of 72237441 is about 416.4735750291.

The spelling of 72237441 in words is "seventy-two million, two hundred thirty-seven thousand, four hundred forty-one".