1220876372 has 12 divisors (see below), whose sum is σ = 2143495200. Its totient is φ = 608449176.

The previous prime is 1220876353. The next prime is 1220876389. The reversal of 1220876372 is 2736780221.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 495872 + ... + 498327.

It is an arithmetic number, because the mean of its divisors is an integer number (178624600).

Almost surely, 2^1220876372 is an apocalyptic number.

It is an amenable number.

1220876372 is a deficient number, since it is larger than the sum of its proper divisors (922618828).

1220876372 is a wasteful number, since it uses less digits than its factorization.

1220876372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 994510 (or 994508 counting only the distinct ones).

The product of its (nonzero) digits is 56448, while the sum is 38.

The square root of 1220876372 is about 34941.0413697131. The cubic root of 1220876372 is about 1068.7855239745.

The spelling of 1220876372 in words is "one billion, two hundred twenty million, eight hundred seventy-six thousand, three hundred seventy-two".