1338869850 has 96 divisors (see below), whose sum is σ = 3629339136. Its totient is φ = 325171200.

The previous prime is 1338869839. The next prime is 1338869863. The reversal of 1338869850 is 589688331.

1338869850 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a junction number, because it is equal to n+sod(n) for n = 1338869793 and 1338869802.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 70582 + ... + 87518.

It is an arithmetic number, because the mean of its divisors is an integer number (37805616).

Almost surely, 2^1338869850 is an apocalyptic number.

1338869850 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1338869850, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1814669568).

1338869850 is an abundant number, since it is smaller than the sum of its proper divisors (2290469286).

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

1338869850 is a wasteful number, since it uses less digits than its factorization.

1338869850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17000 (or 16995 counting only the distinct ones).

The product of its (nonzero) digits is 1244160, while the sum is 51.

The square root of 1338869850 is about 36590.5705066210. The cubic root of 1338869850 is about 1102.1637437939.

It can be divided in two parts, 13388 and 69850, that added together give a palindrome (83238).

The spelling of 1338869850 in words is "one billion, three hundred thirty-eight million, eight hundred sixty-nine thousand, eight hundred fifty".