1988298190 has 16 divisors (see below), whose sum is σ = 3582898992. Its totient is φ = 794438784.

The previous prime is 1988298163. The next prime is 1988298229. The reversal of 1988298190 is 918928891.

It is a super-2 number, since 2×1988298190² = 7906659384714552200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 100539 + ... + 118678.

It is an arithmetic number, because the mean of its divisors is an integer number (223931187).

Almost surely, 2^1988298190 is an apocalyptic number.

1988298190 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1988298190 is a deficient number, since it is larger than the sum of its proper divisors (1594600802).

1988298190 is a wasteful number, since it uses less digits than its factorization.

1988298190 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220131.

The product of its (nonzero) digits is 746496, while the sum is 55.

The square root of 1988298190 is about 44590.3374062139. The cubic root of 1988298190 is about 1257.4590158007.

The spelling of 1988298190 in words is "one billion, nine hundred eighty-eight million, two hundred ninety-eight thousand, one hundred ninety".