72266415 has 16 divisors (see below), whose sum is σ = 124520928. Its totient is φ = 35577216.

The previous prime is 72266339. The next prime is 72266419. The reversal of 72266415 is 51466227.

It is not a de Polignac number, because 72266415 - 2⁷ = 72266287 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72266419) 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, 185104 + ... + 185493.

It is an arithmetic number, because the mean of its divisors is an integer number (7782558).

Almost surely, 2^72266415 is an apocalyptic number.

72266415 is a deficient number, since it is larger than the sum of its proper divisors (52254513).

72266415 is a wasteful number, since it uses less digits than its factorization.

72266415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 370618.

The product of its digits is 20160, while the sum is 33.

The square root of 72266415 is about 8500.9655333968. The cubic root of 72266415 is about 416.5292492623.

The spelling of 72266415 in words is "seventy-two million, two hundred sixty-six thousand, four hundred fifteen".