1988838830 has 32 divisors (see below), whose sum is σ = 3909299328. Its totient is φ = 722484000.

The previous prime is 1988838811. The next prime is 1988838871. The reversal of 1988838830 is 388388891.

It is a congruent 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, 107009 + ... + 124211.

It is an arithmetic number, because the mean of its divisors is an integer number (122165604).

Almost surely, 2^1988838830 is an apocalyptic number.

1988838830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1988838830 is a deficient number, since it is larger than the sum of its proper divisors (1920460498).

1988838830 is a wasteful number, since it uses less digits than its factorization.

1988838830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18272.

The product of its (nonzero) digits is 2654208, while the sum is 56.

The square root of 1988838830 is about 44596.3992941134. The cubic root of 1988838830 is about 1257.5729777535.

The spelling of 1988838830 in words is "one billion, nine hundred eighty-eight million, eight hundred thirty-eight thousand, eight hundred thirty".