38049689 has 4 divisors (see below), whose sum is σ = 40287924. Its totient is φ = 35811456.

The previous prime is 38049677. The next prime is 38049701. The reversal of 38049689 is 98694083.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (38049677) and next prime (38049701).

It can be written as a sum of positive squares in 2 ways, for example, as 19430464 + 18619225 = 4408^2 + 4315^2 .

It is a cyclic number.

It is not a de Polignac number, because 38049689 - 2¹⁶ = 37984153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38049619) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1119092 + ... + 1119125.

It is an arithmetic number, because the mean of its divisors is an integer number (10071981).

Almost surely, 2^38049689 is an apocalyptic number.

It is an amenable number.

38049689 is a deficient number, since it is larger than the sum of its proper divisors (2238235).

38049689 is a wasteful number, since it uses less digits than its factorization.

38049689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2238234.

The product of its (nonzero) digits is 373248, while the sum is 47.

The square root of 38049689 is about 6168.4429964133. The cubic root of 38049689 is about 336.3440147462.

The spelling of 38049689 in words is "thirty-eight million, forty-nine thousand, six hundred eighty-nine".