1098536390 has 32 divisors (see below), whose sum is σ = 2305972800. Its totient is φ = 376639872.

The previous prime is 1098536363. The next prime is 1098536423. The reversal of 1098536390 is 936358901.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 156707 + ... + 163566.

It is an arithmetic number, because the mean of its divisors is an integer number (72061650).

Almost surely, 2^1098536390 is an apocalyptic number.

1098536390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1098536390 is an abundant number, since it is smaller than the sum of its proper divisors (1207436410).

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

1098536390 is an equidigital number, since it uses as much as digits as its factorization.

1098536390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 320301 (or 320287 counting only the distinct ones).

The product of its (nonzero) digits is 174960, while the sum is 44.

The square root of 1098536390 is about 33144.1758081265. The cubic root of 1098536390 is about 1031.8220772481.

The spelling of 1098536390 in words is "one billion, ninety-eight million, five hundred thirty-six thousand, three hundred ninety".