1098559290 has 32 divisors (see below), whose sum is σ = 2775309120. Its totient is φ = 277530624.

The previous prime is 1098559279. The next prime is 1098559303. The reversal of 1098559290 is 929558901.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 963079 + ... + 964218.

It is an arithmetic number, because the mean of its divisors is an integer number (86728410).

Almost surely, 2^1098559290 is an apocalyptic number.

1098559290 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1098559290 is an abundant number, since it is smaller than the sum of its proper divisors (1676749830).

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

1098559290 is a wasteful number, since it uses less digits than its factorization.

1098559290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1927326.

The product of its (nonzero) digits is 291600, while the sum is 48.

The square root of 1098559290 is about 33144.5212667192. The cubic root of 1098559290 is about 1031.8292469579.

The spelling of 1098559290 in words is "one billion, ninety-eight million, five hundred fifty-nine thousand, two hundred ninety".