10320420 has 96 divisors (see below), whose sum is σ = 33223680. Its totient is φ = 2367360.

The previous prime is 10320391. The next prime is 10320437. The reversal of 10320420 is 2402301.

10320420 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×10320420² = 213022137952800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 10320396 and 10320405.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12129 + ... + 12951.

It is an arithmetic number, because the mean of its divisors is an integer number (346080).

Almost surely, 2^10320420 is an apocalyptic number.

10320420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10320420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16611840).

10320420 is an abundant number, since it is smaller than the sum of its proper divisors (22903260).

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

10320420 is a wasteful number, since it uses less digits than its factorization.

10320420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 865 (or 863 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 10320420 is about 3212.5410503214. The cubic root of 10320420 is about 217.7204001818.

Adding to 10320420 its reverse (2402301), we get a palindrome (12722721).

The spelling of 10320420 in words is "ten million, three hundred twenty thousand, four hundred twenty".