720252 has 84 divisors (see below), whose sum is σ = 2142280. Its totient is φ = 209952.

The previous prime is 720241. The next prime is 720253. The reversal of 720252 is 252027.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (720253) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 37899 + ... + 37917.

2⁷²⁰²⁵² 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 720252, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1071140).

720252 is an abundant number, since it is smaller than the sum of its proper divisors (1422028).

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

720252 is a wasteful number, since it uses less digits than its factorization.

720252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54 (or 37 counting only the distinct ones).

The product of its (nonzero) digits is 280, while the sum is 18.

The square root of 720252 is about 848.6766168571. The cubic root of 720252 is about 89.6385503225.

Adding to 720252 its reverse (252027), we get a palindrome (972279).

It can be divided in two parts, 72025 and 2, that added together give a palindrome (72027).

The spelling of 720252 in words is "seven hundred twenty thousand, two hundred fifty-two".