1220587484 has 12 divisors (see below), whose sum is σ = 2137763544. Its totient is φ = 609797904.

The previous prime is 1220587477. The next prime is 1220587513. The reversal of 1220587484 is 4847850221.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 118394 + ... + 128289.

It is an arithmetic number, because the mean of its divisors is an integer number (178146962).

Almost surely, 2^1220587484 is an apocalyptic number.

It is an amenable number.

1220587484 is a deficient number, since it is larger than the sum of its proper divisors (917176060).

1220587484 is a wasteful number, since it uses less digits than its factorization.

1220587484 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247924 (or 247922 counting only the distinct ones).

The product of its (nonzero) digits is 143360, while the sum is 41.

The square root of 1220587484 is about 34936.9071899617. The cubic root of 1220587484 is about 1068.7012174125.

The spelling of 1220587484 in words is "one billion, two hundred twenty million, five hundred eighty-seven thousand, four hundred eighty-four".