1219481088 has 160 divisors (see below), whose sum is σ = 3841896960. Its totient is φ = 336322560.

The previous prime is 1219481027. The next prime is 1219481099. The reversal of 1219481088 is 8801849121.

It is a Harshad number since it is a multiple of its sum of digits (42).

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 15 ways as a sum of consecutive naturals, for example, 309853 + ... + 313763.

It is an arithmetic number, because the mean of its divisors is an integer number (24011856).

Almost surely, 2^1219481088 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 1219481088, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1920948480).

1219481088 is an abundant number, since it is smaller than the sum of its proper divisors (2622415872).

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

1219481088 is an equidigital number, since it uses as much as digits as its factorization.

1219481088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3968 (or 3952 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 42.

The square root of 1219481088 is about 34921.0693994328. The cubic root of 1219481088 is about 1068.3782133372.

The spelling of 1219481088 in words is "one billion, two hundred nineteen million, four hundred eighty-one thousand, eighty-eight".