72116038 has 4 divisors (see below), whose sum is σ = 108174060. Its totient is φ = 36058018.

The previous prime is 72116003. The next prime is 72116047. The reversal of 72116038 is 83061127.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 83061127 = 6829 ⋅12163.

It is a junction number, because it is equal to n+sod(n) for n = 72115997 and 72116015.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18029008 + ... + 18029011.

It is an arithmetic number, because the mean of its divisors is an integer number (27043515).

Almost surely, 2^72116038 is an apocalyptic number.

72116038 is a deficient number, since it is larger than the sum of its proper divisors (36058022).

72116038 is a wasteful number, since it uses less digits than its factorization.

72116038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36058021.

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 72116038 is about 8492.1162262418. The cubic root of 72116038 is about 416.2401342550.

The spelling of 72116038 in words is "seventy-two million, one hundred sixteen thousand, thirty-eight".