138622050 has 96 divisors (see below), whose sum is σ = 436579200. Its totient is φ = 31682880.

The previous prime is 138622009. The next prime is 138622061. The reversal of 138622050 is 50226831.

138622050 is a `hidden beast` number, since 1 + 38 + 622 + 0 + 5 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

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, 2116 + ... + 16784.

It is an arithmetic number, because the mean of its divisors is an integer number (4547700).

Almost surely, 2^138622050 is an apocalyptic number.

138622050 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 138622050, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (218289600).

138622050 is an abundant number, since it is smaller than the sum of its proper divisors (297957150).

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

138622050 is a wasteful number, since it uses less digits than its factorization.

138622050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14697 (or 14686 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 138622050 is about 11773.7865616801. The cubic root of 138622050 is about 517.5402195164.

Adding to 138622050 its reverse (50226831), we get a palindrome (188848881).

It can be divided in two parts, 1386 and 22050, that added together give a triangular number (23436 = T₂₁₆).

The spelling of 138622050 in words is "one hundred thirty-eight million, six hundred twenty-two thousand, fifty".