1220367384 has 96 divisors (see below), whose sum is σ = 3455262720. Its totient is φ = 403504416.

The previous prime is 1220367329. The next prime is 1220367427. The reversal of 1220367384 is 4837630221.

It is a happy number.

1220367384 is a `hidden beast` number, since 12 + 203 + 67 + 384 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 244417 + ... + 249359.

It is an arithmetic number, because the mean of its divisors is an integer number (35992320).

Almost surely, 2^1220367384 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1220367384, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1727631360).

1220367384 is an abundant number, since it is smaller than the sum of its proper divisors (2234895336).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1220367384 is a wasteful number, since it uses less digits than its factorization.

1220367384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5091 (or 5075 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 36.

The square root of 1220367384 is about 34933.7570839439. The cubic root of 1220367384 is about 1068.6369764135.

The spelling of 1220367384 in words is "one billion, two hundred twenty million, three hundred sixty-seven thousand, three hundred eighty-four".