1204432220 has 24 divisors (see below), whose sum is σ = 2547510000. Its totient is φ = 478305792.

The previous prime is 1204432169. The next prime is 1204432231. The reversal of 1204432220 is 222344021.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 1204432192 and 1204432201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 213845 + ... + 219404.

It is an arithmetic number, because the mean of its divisors is an integer number (106146250).

Almost surely, 2^1204432220 is an apocalyptic number.

1204432220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1204432220 is an abundant number, since it is smaller than the sum of its proper divisors (1343077780).

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

1204432220 is a wasteful number, since it uses less digits than its factorization.

1204432220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 433397 (or 433395 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 1204432220 is about 34704.9307735947. The cubic root of 1204432220 is about 1063.9652774298.

Adding to 1204432220 its reverse (222344021), we get a palindrome (1426776241).

The spelling of 1204432220 in words is "one billion, two hundred four million, four hundred thirty-two thousand, two hundred twenty".