72803344 has 20 divisors (see below), whose sum is σ = 143719596. Its totient is φ = 35714432.

The previous prime is 72803323. The next prime is 72803347. The reversal of 72803344 is 44330827.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 67043344 + 5760000 = 8188^2 + 2400^2 .

It is not an unprimeable number, because it can be changed into a prime (72803347) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42079 + ... + 43774.

Almost surely, 2^72803344 is an apocalyptic number.

It is an amenable number.

72803344 is a deficient number, since it is larger than the sum of its proper divisors (70916252).

72803344 is a wasteful number, since it uses less digits than its factorization.

72803344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85914 (or 85908 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 31.

The square root of 72803344 is about 8532.4875622529. The cubic root of 72803344 is about 417.5582889202.

The spelling of 72803344 in words is "seventy-two million, eight hundred three thousand, three hundred forty-four".