386916049 has 8 divisors (see below), whose sum is σ = 416831912. Its totient is φ = 357022080.

The previous prime is 386916043. The next prime is 386916071. The reversal of 386916049 is 940619683.

It can be written as a sum of positive squares in 4 ways, for example, as 1500625 + 385415424 = 1225^2 + 19632^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 386916049 - 2²¹ = 384818897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (386916043) 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, 63559 + ... + 69379.

It is an arithmetic number, because the mean of its divisors is an integer number (52103989).

Almost surely, 2^386916049 is an apocalyptic number.

It is an amenable number.

386916049 is a deficient number, since it is larger than the sum of its proper divisors (29915863).

386916049 is a wasteful number, since it uses less digits than its factorization.

386916049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10947.

The product of its (nonzero) digits is 279936, while the sum is 46.

The square root of 386916049 is about 19670.1817225973. The cubic root of 386916049 is about 728.6834649607.

The spelling of 386916049 in words is "three hundred eighty-six million, nine hundred sixteen thousand, forty-nine".