38680049 has 8 divisors (see below), whose sum is σ = 41102280. Its totient is φ = 36400128.

The previous prime is 38680021. The next prime is 38680073. The reversal of 38680049 is 94008683.

It can be written as a sum of positive squares in 4 ways, for example, as 734449 + 37945600 = 857^2 + 6160^2 .

It is not a de Polignac number, because 38680049 - 2⁸ = 38679793 is a prime.

It is a super-2 number, since 2×38680049² = 2992292381284802, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 38679994 and 38680021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38680099) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 977 + ... + 8849.

It is an arithmetic number, because the mean of its divisors is an integer number (5137785).

Almost surely, 2^38680049 is an apocalyptic number.

It is an amenable number.

38680049 is a deficient number, since it is larger than the sum of its proper divisors (2422231).

38680049 is an frugal number, since it uses more digits than its factorization.

38680049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7924 (or 7890 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 38.

The square root of 38680049 is about 6219.3286615197. The cubic root of 38680049 is about 338.1912278776.

The spelling of 38680049 in words is "thirty-eight million, six hundred eighty thousand, forty-nine".