4500933921 has 81 divisors (see below), whose sum is σ = 7613162193. Its totient is φ = 2560116240.

The previous prime is 4500933887. The next prime is 4500933937. The reversal of 4500933921 is 1293390054.

It is a happy number.

The square root of 4500933921 is 67089.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 4500933921 - 2²³ = 4492545313 is a prime.

It is a super-2 number, since 2×4500933921² = 40516812322416868482, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (4500932921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 42064750 + ... + 42064856.

Almost surely, 2^4500933921 is an apocalyptic number.

4500933921 is the 67089-th square number.

4500933921 is the 33545-th centered octagonal number.

It is an amenable number.

4500933921 is a deficient number, since it is larger than the sum of its proper divisors (3112228272).

4500933921 is a wasteful number, since it uses less digits than its factorization.

4500933921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 280 (or 140 counting only the distinct ones).

The product of its (nonzero) digits is 29160, while the sum is 36.

The cubic root of 4500933921 is about 1651.0778291100.

Multiplying 4500933921 by its sum of digits (36), we get a square (162033621156 = 402534²).

The spelling of 4500933921 in words is "four billion, five hundred million, nine hundred thirty-three thousand, nine hundred twenty-one".