1384549998 has 64 divisors (see below), whose sum is σ = 3119316480. Its totient is φ = 406505088.

The previous prime is 1384549997. The next prime is 1384550053. The reversal of 1384549998 is 8999454831.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1384549997) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1099093 + ... + 1100351.

It is an arithmetic number, because the mean of its divisors is an integer number (48739320).

Almost surely, 2^1384549998 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1384549998, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1559658240).

1384549998 is an abundant number, since it is smaller than the sum of its proper divisors (1734766482).

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

1384549998 is a wasteful number, since it uses less digits than its factorization.

1384549998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1913.

The product of its digits is 11197440, while the sum is 60.

The square root of 1384549998 is about 37209.5417601453. The cubic root of 1384549998 is about 1114.5585328932.

The spelling of 1384549998 in words is "one billion, three hundred eighty-four million, five hundred forty-nine thousand, nine hundred ninety-eight".