72069456 has 20 divisors (see below), whose sum is σ = 186179552. Its totient is φ = 24023136.

The previous prime is 72069449. The next prime is 72069461. The reversal of 72069456 is 65496027.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 750676 + ... + 750771.

Almost surely, 2^72069456 is an apocalyptic number.

It is an amenable number.

72069456 is an abundant number, since it is smaller than the sum of its proper divisors (114110096).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

72069456 is a wasteful number, since it uses less digits than its factorization.

72069456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1501458 (or 1501452 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 39.

The square root of 72069456 is about 8489.3731217328. The cubic root of 72069456 is about 416.1504941200.

The spelling of 72069456 in words is "seventy-two million, sixty-nine thousand, four hundred fifty-six".