10304220 has 48 divisors (see below), whose sum is σ = 29030400. Its totient is φ = 2730816.

The previous prime is 10304197. The next prime is 10304237. The reversal of 10304220 is 2240301.

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 = 10304196 and 10304205.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11509 + ... + 12371.

It is an arithmetic number, because the mean of its divisors is an integer number (604800).

Almost surely, 2^10304220 is an apocalyptic number.

10304220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10304220 is an abundant number, since it is smaller than the sum of its proper divisors (18726180).

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

10304220 is a wasteful number, since it uses less digits than its factorization.

10304220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1074 (or 1072 counting only the distinct ones).

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

The square root of 10304220 is about 3210.0186915344. The cubic root of 10304220 is about 217.6064216945.

Adding to 10304220 its reverse (2240301), we get a palindrome (12544521).

The spelling of 10304220 in words is "ten million, three hundred four thousand, two hundred twenty".