3855530239 has 4 divisors (see below), whose sum is σ = 4206033000. Its totient is φ = 3505027480.

The previous prime is 3855530221. The next prime is 3855530257. The reversal of 3855530239 is 9320355583.

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 (3855530221) and next prime (3855530257).

It is a cyclic number.

It is not a de Polignac number, because 3855530239 - 2¹¹ = 3855528191 is a prime.

It is a super-2 number, since 2×3855530239² = 29730226847686794242, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3855530195 and 3855530204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3855530039) 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, 175251364 + ... + 175251385.

It is an arithmetic number, because the mean of its divisors is an integer number (1051508250).

Almost surely, 2^3855530239 is an apocalyptic number.

3855530239 is a deficient number, since it is larger than the sum of its proper divisors (350502761).

3855530239 is a wasteful number, since it uses less digits than its factorization.

3855530239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 350502760.

The product of its (nonzero) digits is 486000, while the sum is 43.

The square root of 3855530239 is about 62092.9161740693. The cubic root of 3855530239 is about 1568.0552873777.

The spelling of 3855530239 in words is "three billion, eight hundred fifty-five million, five hundred thirty thousand, two hundred thirty-nine".