1220342888 has 16 divisors (see below), whose sum is σ = 2320371360. Its totient is φ = 601577200.

The previous prime is 1220342839. The next prime is 1220342899. The reversal of 1220342888 is 8882430221.

It is a happy 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, 1073678 + ... + 1074813.

It is an arithmetic number, because the mean of its divisors is an integer number (145023210).

Almost surely, 2^1220342888 is an apocalyptic number.

It is an amenable number.

1220342888 is a deficient number, since it is larger than the sum of its proper divisors (1100028472).

1220342888 is a wasteful number, since it uses less digits than its factorization.

1220342888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2148568 (or 2148564 counting only the distinct ones).

The product of its (nonzero) digits is 49152, while the sum is 38.

The square root of 1220342888 is about 34933.4064757504. The cubic root of 1220342888 is about 1068.6298262425.

The spelling of 1220342888 in words is "one billion, two hundred twenty million, three hundred forty-two thousand, eight hundred eighty-eight".