993737220 has 96 divisors (see below), whose sum is σ = 3184140288. Its totient is φ = 226841472.

The previous prime is 993737179. The next prime is 993737257. The reversal of 993737220 is 22737399.

993737220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 556449 + ... + 558231.

It is an arithmetic number, because the mean of its divisors is an integer number (33168128).

Almost surely, 2^993737220 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 993737220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1592070144).

993737220 is an abundant number, since it is smaller than the sum of its proper divisors (2190403068).

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

993737220 is a wasteful number, since it uses less digits than its factorization.

993737220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3129 (or 3127 counting only the distinct ones).

The product of its (nonzero) digits is 142884, while the sum is 42.

The square root of 993737220 is about 31523.5978276592. The cubic root of 993737220 is about 997.9080333941.

The spelling of 993737220 in words is "nine hundred ninety-three million, seven hundred thirty-seven thousand, two hundred twenty".