1220230404 has 36 divisors (see below), whose sum is σ = 3106674480. Its totient is φ = 403815600.

The previous prime is 1220230373. The next prime is 1220230439. The reversal of 1220230404 is 4040320221.

1220230404 is a `hidden beast` number, since 12 + 20 + 230 + 404 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

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

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 116922 + ... + 126929.

Almost surely, 2^1220230404 is an apocalyptic number.

It is an amenable number.

1220230404 is an abundant number, since it is smaller than the sum of its proper divisors (1886444076).

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

1220230404 is a wasteful number, since it uses less digits than its factorization.

1220230404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 244000 (or 243995 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 1220230404 is about 34931.7964611040. The cubic root of 1220230404 is about 1068.5969919049.

Adding to 1220230404 its reverse (4040320221), we get a palindrome (5260550625).

The spelling of 1220230404 in words is "one billion, two hundred twenty million, two hundred thirty thousand, four hundred four".