72424786 has 16 divisors (see below), whose sum is σ = 124539840. Its totient is φ = 30943440.

The previous prime is 72424763. The next prime is 72424787. The reversal of 72424786 is 68742427.

It is not an unprimeable number, because it can be changed into a prime (72424787) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3181 + ... + 12448.

It is an arithmetic number, because the mean of its divisors is an integer number (7783740).

Almost surely, 2^72424786 is an apocalyptic number.

72424786 is a deficient number, since it is larger than the sum of its proper divisors (52115054).

72424786 is a wasteful number, since it uses less digits than its factorization.

72424786 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15969.

The product of its digits is 150528, while the sum is 40.

The square root of 72424786 is about 8510.2753186956. The cubic root of 72424786 is about 416.8333002487.

The spelling of 72424786 in words is "seventy-two million, four hundred twenty-four thousand, seven hundred eighty-six".