733221120 has 144 divisors (see below), whose sum is σ = 2372348160. Its totient is φ = 192970752.

The previous prime is 733221029. The next prime is 733221149. The reversal of 733221120 is 21122337.

It is a super-2 number, since 2×733221120² = 1075226421628108800, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 302152 + ... + 304568.

It is an arithmetic number, because the mean of its divisors is an integer number (16474640).

Almost surely, 2^733221120 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 733221120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1186174080).

733221120 is an abundant number, since it is smaller than the sum of its proper divisors (1639127040).

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

733221120 is a wasteful number, since it uses less digits than its factorization.

733221120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2520 (or 2506 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 21.

The square root of 733221120 is about 27078.0560602123. The cubic root of 733221120 is about 901.7337444199.

Adding to 733221120 its reverse (21122337), we get a palindrome (754343457).

The spelling of 733221120 in words is "seven hundred thirty-three million, two hundred twenty-one thousand, one hundred twenty".