386211845 has 4 divisors (see below), whose sum is σ = 463454220. Its totient is φ = 308969472.

The previous prime is 386211823. The next prime is 386211863. The reversal of 386211845 is 548112683.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 548112683 = 373 ⋅1469471.

It can be written as a sum of positive squares in 2 ways, for example, as 69122596 + 317089249 = 8314^2 + 17807^2 .

It is a cyclic number.

It is not a de Polignac number, because 386211845 - 2¹² = 386207749 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 386211799 and 386211808.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38621180 + ... + 38621189.

It is an arithmetic number, because the mean of its divisors is an integer number (115863555).

Almost surely, 2^386211845 is an apocalyptic number.

It is an amenable number.

386211845 is a deficient number, since it is larger than the sum of its proper divisors (77242375).

386211845 is an equidigital number, since it uses as much as digits as its factorization.

386211845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77242374.

The product of its digits is 46080, while the sum is 38.

The square root of 386211845 is about 19652.2732781732. The cubic root of 386211845 is about 728.2411179789.

The spelling of 386211845 in words is "three hundred eighty-six million, two hundred eleven thousand, eight hundred forty-five".