1130988990 has 64 divisors (see below), whose sum is σ = 2800339776. Its totient is φ = 292119552.

The previous prime is 1130988979. The next prime is 1130989007. The reversal of 1130988990 is 998890311.

It is a congruent number.

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, 256444 + ... + 260816.

It is an arithmetic number, because the mean of its divisors is an integer number (43755309).

Almost surely, 2^1130988990 is an apocalyptic number.

1130988990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1130988990, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1400169888).

1130988990 is an abundant number, since it is smaller than the sum of its proper divisors (1669350786).

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

1130988990 is a wasteful number, since it uses less digits than its factorization.

1130988990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4653.

The product of its (nonzero) digits is 139968, while the sum is 48.

The square root of 1130988990 is about 33630.1797497426. The cubic root of 1130988990 is about 1041.8842167344.

The spelling of 1130988990 in words is "one billion, one hundred thirty million, nine hundred eighty-eight thousand, nine hundred ninety".