72444016 has 20 divisors (see below), whose sum is σ = 141651400. Its totient is φ = 35888832.

The previous prime is 72444013. The next prime is 72444023. The reversal of 72444016 is 61044427.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72444011) 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, 19026 + ... + 22513.

It is an arithmetic number, because the mean of its divisors is an integer number (7082570).

Almost surely, 2^72444016 is an apocalyptic number.

It is an amenable number.

72444016 is a deficient number, since it is larger than the sum of its proper divisors (69207384).

72444016 is a wasteful number, since it uses less digits than its factorization.

72444016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41656 (or 41650 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 28.

The square root of 72444016 is about 8511.4050543961. The cubic root of 72444016 is about 416.8701890703.

The spelling of 72444016 in words is "seventy-two million, four hundred forty-four thousand, sixteen".