4453957820 has 216 divisors, whose sum is σ = 11016927936. Its totient is φ = 1510519296.

The previous prime is 4453957819. The next prime is 4453957847. The reversal of 4453957820 is 287593544.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is a congruent number.

It is an unprimeable number.

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 71 ways as a sum of consecutive naturals, for example, 84036914 + ... + 84036966.

It is an arithmetic number, because the mean of its divisors is an integer number (51004296).

Almost surely, 2^4453957820 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4453957820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5508463968).

4453957820 is an abundant number, since it is smaller than the sum of its proper divisors (6562970116).

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

4453957820 is a wasteful number, since it uses less digits than its factorization.

4453957820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181 (or 143 counting only the distinct ones).

The product of its (nonzero) digits is 1209600, while the sum is 47.

The square root of 4453957820 is about 66737.9788426350. The cubic root of 4453957820 is about 1645.3136469534.

The spelling of 4453957820 in words is "four billion, four hundred fifty-three million, nine hundred fifty-seven thousand, eight hundred twenty".