138244316 has 48 divisors (see below), whose sum is σ = 285600000. Its totient is φ = 57328128.

The previous prime is 138244307. The next prime is 138244339. The reversal of 138244316 is 613442831.

138244316 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×138244316² = 38222981812615712, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 110060 + ... + 111308.

It is an arithmetic number, because the mean of its divisors is an integer number (5950000).

Almost surely, 2^138244316 is an apocalyptic number.

It is an amenable number.

138244316 is an abundant number, since it is smaller than the sum of its proper divisors (147355684).

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

138244316 is a wasteful number, since it uses less digits than its factorization.

138244316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1386 (or 1384 counting only the distinct ones).

The product of its digits is 13824, while the sum is 32.

The square root of 138244316 is about 11757.7343055539. The cubic root of 138244316 is about 517.0697066513.

The spelling of 138244316 in words is "one hundred thirty-eight million, two hundred forty-four thousand, three hundred sixteen".