732020 has 24 divisors (see below), whose sum is σ = 1628424. Its totient is φ = 275456.

The previous prime is 731999. The next prime is 732023. The reversal of 732020 is 20237.

It can be written as a sum of positive squares in 4 ways, for example, as 33124 + 698896 = 182^2 + 836^2 .

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 731986 and 732004.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 732020.

It is not an unprimeable number, because it can be changed into a prime (732023) by changing a digit.

732020 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 (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 737 + ... + 1416.

It is an arithmetic number, because the mean of its divisors is an integer number (67851).

2⁷³²⁰²⁰ is an apocalyptic number.

It is an amenable number.

732020 is an abundant number, since it is smaller than the sum of its proper divisors (896404).

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

732020 is a wasteful number, since it uses less digits than its factorization.

732020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2179 (or 2177 counting only the distinct ones).

The product of its (nonzero) digits is 84, while the sum is 14.

The square root of 732020 is about 855.5816734830. The cubic root of 732020 is about 90.1241086129.

Adding to 732020 its reverse (20237), we get a palindrome (752257).

The spelling of 732020 in words is "seven hundred thirty-two thousand, twenty".