72303284 has 24 divisors (see below), whose sum is σ = 137491200. Its totient is φ = 33143040.

The previous prime is 72303281. The next prime is 72303307. The reversal of 72303284 is 48230327.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72303281) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12989 + ... + 17700.

It is an arithmetic number, because the mean of its divisors is an integer number (5728800).

Almost surely, 2^72303284 is an apocalyptic number.

It is an amenable number.

72303284 is a deficient number, since it is larger than the sum of its proper divisors (65187916).

72303284 is a wasteful number, since it uses less digits than its factorization.

72303284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30743 (or 30741 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 29.

The square root of 72303284 is about 8503.1337752619. The cubic root of 72303284 is about 416.6000724148.

The spelling of 72303284 in words is "seventy-two million, three hundred three thousand, two hundred eighty-four".