73023728 has 10 divisors (see below), whose sum is σ = 141483504. Its totient is φ = 36511856.

The previous prime is 73023719. The next prime is 73023793. The reversal of 73023728 is 82732037.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 73023694 and 73023703.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2281976 + ... + 2282007.

Almost surely, 2^73023728 is an apocalyptic number.

It is an amenable number.

73023728 is a deficient number, since it is larger than the sum of its proper divisors (68459776).

73023728 is a wasteful number, since it uses less digits than its factorization.

73023728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4563991 (or 4563985 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 32.

The square root of 73023728 is about 8545.3922086701. The cubic root of 73023728 is about 417.9791966326.

The spelling of 73023728 in words is "seventy-three million, twenty-three thousand, seven hundred twenty-eight".