3855045 has 8 divisors (see below), whose sum is σ = 6168096. Its totient is φ = 2056016.

The previous prime is 3855041. The next prime is 3855083. The reversal of 3855045 is 5405583.

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 3855045 - 2² = 3855041 is a prime.

It is a super-2 number, since 2×3855045² = 29722743904050, which contains 22 as substring.

3855045 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3855041) 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, 128487 + ... + 128516.

It is an arithmetic number, because the mean of its divisors is an integer number (771012).

Almost surely, 2^3855045 is an apocalyptic number.

It is an amenable number.

3855045 is a deficient number, since it is larger than the sum of its proper divisors (2313051).

3855045 is a wasteful number, since it uses less digits than its factorization.

3855045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 257011.

The product of its (nonzero) digits is 12000, while the sum is 30.

The square root of 3855045 is about 1963.4268511967. The cubic root of 3855045 is about 156.7989501917.

The spelling of 3855045 in words is "three million, eight hundred fifty-five thousand, forty-five".