72041505 has 16 divisors (see below), whose sum is σ = 115382400. Its totient is φ = 38383488.

The previous prime is 72041477. The next prime is 72041507. The reversal of 72041505 is 50514027.

It is not a de Polignac number, because 72041505 - 2⁶ = 72041441 is a prime.

It is not an unprimeable number, because it can be changed into a prime (72041507) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19269 + ... + 22701.

It is an arithmetic number, because the mean of its divisors is an integer number (7211400).

Almost surely, 2^72041505 is an apocalyptic number.

It is an amenable number.

72041505 is a deficient number, since it is larger than the sum of its proper divisors (43340895).

72041505 is a wasteful number, since it uses less digits than its factorization.

72041505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4840.

The product of its (nonzero) digits is 1400, while the sum is 24.

The square root of 72041505 is about 8487.7267274577. The cubic root of 72041505 is about 416.0966880318.

The spelling of 72041505 in words is "seventy-two million, forty-one thousand, five hundred five".