1090660998 has 64 divisors (see below), whose sum is σ = 2524999680. Its totient is φ = 307638432.

The previous prime is 1090660981. The next prime is 1090661017. The reversal of 1090660998 is 8990660901.

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, 1324815 + ... + 1325637.

It is an arithmetic number, because the mean of its divisors is an integer number (39453120).

Almost surely, 2^1090660998 is an apocalyptic number.

1090660998 is an abundant number, since it is smaller than the sum of its proper divisors (1434338682).

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

1090660998 is a wasteful number, since it uses less digits than its factorization.

1090660998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1201.

The product of its (nonzero) digits is 209952, while the sum is 48.

The square root of 1090660998 is about 33025.1570473177. The cubic root of 1090660998 is about 1029.3504554554.

The spelling of 1090660998 in words is "one billion, ninety million, six hundred sixty thousand, nine hundred ninety-eight".