72448442 has 16 divisors (see below), whose sum is σ = 121757472. Its totient is φ = 32040720.

The previous prime is 72448429. The next prime is 72448487. The reversal of 72448442 is 24484427.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43688 + ... + 45315.

It is an arithmetic number, because the mean of its divisors is an integer number (7609842).

Almost surely, 2^72448442 is an apocalyptic number.

72448442 is a deficient number, since it is larger than the sum of its proper divisors (49309030).

72448442 is a wasteful number, since it uses less digits than its factorization.

72448442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89053.

The product of its digits is 57344, while the sum is 35.

The square root of 72448442 is about 8511.6650545002. The cubic root of 72448442 is about 416.8786785218.

The spelling of 72448442 in words is "seventy-two million, four hundred forty-eight thousand, four hundred forty-two".