1190220864 has 224 divisors, whose sum is σ = 3852769536. Its totient is φ = 316538880.

The previous prime is 1190220833. The next prime is 1190220883. The reversal of 1190220864 is 4680220911.

It is a tau number, because it is divible by the number of its divisors (224).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2581594 + ... + 2582054.

It is an arithmetic number, because the mean of its divisors is an integer number (17199864).

Almost surely, 2^1190220864 is an apocalyptic number.

1190220864 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1190220864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1926384768).

1190220864 is an abundant number, since it is smaller than the sum of its proper divisors (2662548672).

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

1190220864 is a wasteful number, since it uses less digits than its factorization.

1190220864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 613 (or 603 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 33.

The square root of 1190220864 is about 34499.5777365463. The cubic root of 1190220864 is about 1059.7640580833.

The spelling of 1190220864 in words is "one billion, one hundred ninety million, two hundred twenty thousand, eight hundred sixty-four".