1988674448 has 20 divisors (see below), whose sum is σ = 3854133900. Its totient is φ = 994059264.

The previous prime is 1988674423. The next prime is 1988674487. The reversal of 1988674448 is 8444768891.

It can be written as a sum of positive squares in 2 ways, for example, as 313573264 + 1675101184 = 17708^2 + 40928^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49436 + ... + 80132.

It is an arithmetic number, because the mean of its divisors is an integer number (192706695).

Almost surely, 2^1988674448 is an apocalyptic number.

It is an amenable number.

1988674448 is a deficient number, since it is larger than the sum of its proper divisors (1865459452).

1988674448 is a wasteful number, since it uses less digits than its factorization.

1988674448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34754 (or 34748 counting only the distinct ones).

The product of its digits is 12386304, while the sum is 59.

The square root of 1988674448 is about 44594.5562597051. The cubic root of 1988674448 is about 1257.5383297211.

The spelling of 1988674448 in words is "one billion, nine hundred eighty-eight million, six hundred seventy-four thousand, four hundred forty-eight".