1190491904 has 72 divisors (see below), whose sum is σ = 2737717248. Its totient is φ = 506096640.

The previous prime is 1190491903. The next prime is 1190491919. The reversal of 1190491904 is 4091940911.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1190491903) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 224969 + ... + 230199.

Almost surely, 2^1190491904 is an apocalyptic number.

1190491904 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 1190491904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1368858624).

1190491904 is an abundant number, since it is smaller than the sum of its proper divisors (1547225344).

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

1190491904 is an equidigital number, since it uses as much as digits as its factorization.

1190491904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5381 (or 5367 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 38.

The square root of 1190491904 is about 34503.5056769598. The cubic root of 1190491904 is about 1059.8444959970.

The spelling of 1190491904 in words is "one billion, one hundred ninety million, four hundred ninety-one thousand, nine hundred four".