1998357410 has 32 divisors (see below), whose sum is σ = 4172273280. Its totient is φ = 674923392.

The previous prime is 1998357397. The next prime is 1998357437. The reversal of 1998357410 is 147538991.

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, 208355 + ... + 217734.

It is an arithmetic number, because the mean of its divisors is an integer number (130383540).

Almost surely, 2^1998357410 is an apocalyptic number.

1998357410 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1998357410 is an abundant number, since it is smaller than the sum of its proper divisors (2173915870).

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

1998357410 is a wasteful number, since it uses less digits than its factorization.

1998357410 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 426170.

The product of its (nonzero) digits is 272160, while the sum is 47.

The square root of 1998357410 is about 44702.9910632387. The cubic root of 1998357410 is about 1259.5760331379.

The spelling of 1998357410 in words is "one billion, nine hundred ninety-eight million, three hundred fifty-seven thousand, four hundred ten".