72408441 has 32 divisors (see below), whose sum is σ = 114213888. Its totient is φ = 39948480.

The previous prime is 72408421. The next prime is 72408443. The reversal of 72408441 is 14480427.

It is not a de Polignac number, because 72408441 - 2⁵ = 72408409 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 72408399 and 72408408.

It is not an unprimeable number, because it can be changed into a prime (72408443) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 74086 + ... + 75056.

It is an arithmetic number, because the mean of its divisors is an integer number (3569184).

Almost surely, 2^72408441 is an apocalyptic number.

It is an amenable number.

72408441 is a deficient number, since it is larger than the sum of its proper divisors (41805447).

72408441 is a wasteful number, since it uses less digits than its factorization.

72408441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1101.

The product of its (nonzero) digits is 7168, while the sum is 30.

The square root of 72408441 is about 8509.3149548010. The cubic root of 72408441 is about 416.8019405754.

Adding to 72408441 its reverse (14480427), we get a palindrome (86888868).

The spelling of 72408441 in words is "seventy-two million, four hundred eight thousand, four hundred forty-one".