1220413504 has 28 divisors (see below), whose sum is σ = 2423086848. Its totient is φ = 609872000.

The previous prime is 1220413501. The next prime is 1220413553. The reversal of 1220413504 is 4053140221.

It is not an unprimeable number, because it can be changed into a prime (1220413501) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 146409 + ... + 154519.

It is an arithmetic number, because the mean of its divisors is an integer number (86538816).

Almost surely, 2^1220413504 is an apocalyptic number.

It is an amenable number.

1220413504 is a deficient number, since it is larger than the sum of its proper divisors (1202673344).

1220413504 is an equidigital number, since it uses as much as digits as its factorization.

1220413504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10474 (or 10464 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 1220413504 is about 34934.4171842039. The cubic root of 1220413504 is about 1068.6504381839.

Adding to 1220413504 its reverse (4053140221), we get a palindrome (5273553725).

The spelling of 1220413504 in words is "one billion, two hundred twenty million, four hundred thirteen thousand, five hundred four".