247138050 has 48 divisors (see below), whose sum is σ = 617630112. Its totient is φ = 65395200.

The previous prime is 247138049. The next prime is 247138057. The reversal of 247138050 is 50831742.

It is a super-2 number, since 2×247138050² = 122154431515605000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 247137999 and 247138017.

It is not an unprimeable number, because it can be changed into a prime (247138057) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 13362 + ... + 25938.

It is an arithmetic number, because the mean of its divisors is an integer number (12867294).

Almost surely, 2^247138050 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 247138050, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (308815056).

247138050 is an abundant number, since it is smaller than the sum of its proper divisors (370492062).

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

247138050 is a wasteful number, since it uses less digits than its factorization.

247138050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12723 (or 12718 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 247138050 is about 15720.6249875760. The cubic root of 247138050 is about 627.5474057189.

Adding to 247138050 its reverse (50831742), we get a palindrome (297969792).

The spelling of 247138050 in words is "two hundred forty-seven million, one hundred thirty-eight thousand, fifty".