3855730 has 8 divisors (see below), whose sum is σ = 6940332. Its totient is φ = 1542288.

The previous prime is 3855703. The next prime is 3855757. The reversal of 3855730 is 375583.

It is an interprime number because it is at equal distance from previous prime (3855703) and next prime (3855757).

It can be written as a sum of positive squares in 2 ways, for example, as 3721041 + 134689 = 1929^2 + 367^2 .

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

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 3855692 and 3855701.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 192777 + ... + 192796.

Almost surely, 2^3855730 is an apocalyptic number.

3855730 is a deficient number, since it is larger than the sum of its proper divisors (3084602).

3855730 is a wasteful number, since it uses less digits than its factorization.

3855730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 385580.

The product of its (nonzero) digits is 12600, while the sum is 31.

The square root of 3855730 is about 1963.6012833567. The cubic root of 3855730 is about 156.8082368035.

It can be divided in two parts, 385 and 5730, that multiplied together give a triangular number (2206050 = T₂₁₀₀).

The spelling of 3855730 in words is "three million, eight hundred fifty-five thousand, seven hundred thirty".