1220330404 has 24 divisors (see below), whose sum is σ = 2269816640. Its totient is φ = 572435424.

The previous prime is 1220330381. The next prime is 1220330471. The reversal of 1220330404 is 4040330221.

It is a Harshad number since it is a multiple of its sum of digits (19).

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, 70119 + ... + 85774.

Almost surely, 2^1220330404 is an apocalyptic number.

It is an amenable number.

1220330404 is a deficient number, since it is larger than the sum of its proper divisors (1049486236).

1220330404 is a wasteful number, since it uses less digits than its factorization.

1220330404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156019 (or 156017 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 1220330404 is about 34933.2277924614. The cubic root of 1220330404 is about 1068.6261822338.

Adding to 1220330404 its reverse (4040330221), we get a palindrome (5260660625).

The spelling of 1220330404 in words is "one billion, two hundred twenty million, three hundred thirty thousand, four hundred four".