72044115 has 32 divisors (see below), whose sum is σ = 135426816. Its totient is φ = 32242560.

The previous prime is 72044101. The next prime is 72044153. The reversal of 72044115 is 51144027.

It is not a de Polignac number, because 72044115 - 2¹² = 72040019 is a prime.

It is a super-2 number, since 2×72044115² = 10380709012266450, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14649 + ... + 18938.

It is an arithmetic number, because the mean of its divisors is an integer number (4232088).

Almost surely, 2^72044115 is an apocalyptic number.

72044115 is a deficient number, since it is larger than the sum of its proper divisors (63382701).

72044115 is a wasteful number, since it uses less digits than its factorization.

72044115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33619.

The product of its (nonzero) digits is 1120, while the sum is 24.

The square root of 72044115 is about 8487.8804774808. The cubic root of 72044115 is about 416.1017129094.

The spelling of 72044115 in words is "seventy-two million, forty-four thousand, one hundred fifteen".