1115896290 has 64 divisors (see below), whose sum is σ = 2799173376. Its totient is φ = 284168192.

The previous prime is 1115896273. The next prime is 1115896297. The reversal of 1115896290 is 926985111.

It is not an unprimeable number, because it can be changed into a prime (1115896297) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 656722 + ... + 658418.

It is an arithmetic number, because the mean of its divisors is an integer number (43737084).

Almost surely, 2^1115896290 is an apocalyptic number.

1115896290 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 1115896290, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1399586688).

1115896290 is an abundant number, since it is smaller than the sum of its proper divisors (1683277086).

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

1115896290 is a wasteful number, since it uses less digits than its factorization.

1115896290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2683.

The product of its (nonzero) digits is 38880, while the sum is 42.

The square root of 1115896290 is about 33405.0339020933. The cubic root of 1115896290 is about 1037.2289056062.

The spelling of 1115896290 in words is "one billion, one hundred fifteen million, eight hundred ninety-six thousand, two hundred ninety".