733220 has 24 divisors (see below), whose sum is σ = 1567608. Its totient is φ = 288000.

The previous prime is 733189. The next prime is 733237. The reversal of 733220 is 22337.

It can be written as a sum of positive squares in 4 ways, for example, as 30976 + 702244 = 176^2 + 838^2 .

It is a super-2 number, since 2×733220² = 1075223136800, which contains 22 as substring.

It is a nialpdrome in base 10.

It is a congruent number.

It is an unprimeable number.

733220 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 920 + ... + 1520.

It is an arithmetic number, because the mean of its divisors is an integer number (65317).

2⁷³³²²⁰ is an apocalyptic number.

It is an amenable number.

733220 is an abundant number, since it is smaller than the sum of its proper divisors (834388).

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

733220 is a wasteful number, since it uses less digits than its factorization.

733220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 671 (or 669 counting only the distinct ones).

The product of its (nonzero) digits is 252, while the sum is 17.

The square root of 733220 is about 856.2826636106. The cubic root of 733220 is about 90.1733285285.

Adding to 733220 its reverse (22337), we get a palindrome (755557).

The spelling of 733220 in words is "seven hundred thirty-three thousand, two hundred twenty".