750420 has 72 divisors (see below), whose sum is σ = 2489760. Its totient is φ = 181440.

The previous prime is 750419. The next prime is 750437. The reversal of 750420 is 24057.

It is a happy number.

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

It is a nialpdrome in base 15.

It is a junction number, because it is equal to n+sod(n) for n = 750393 and 750402.

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 750420.

It is an unprimeable 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 23 ways as a sum of consecutive naturals, for example, 1791 + ... + 2169.

It is an arithmetic number, because the mean of its divisors is an integer number (34580).

2⁷⁵⁰⁴²⁰ 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 750420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1244880).

750420 is an abundant number, since it is smaller than the sum of its proper divisors (1739340).

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

750420 is a wasteful number, since it uses less digits than its factorization.

750420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 405 (or 400 counting only the distinct ones).

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

The square root of 750420 is about 866.2678569588. The cubic root of 750420 is about 90.8729862690.

Adding to 750420 its reverse (24057), we get a palindrome (774477).

The spelling of 750420 in words is "seven hundred fifty thousand, four hundred twenty".