3855445 has 8 divisors (see below), whose sum is σ = 5047200. Its totient is φ = 2803920.

The previous prime is 3855431. The next prime is 3855469. The reversal of 3855445 is 5445583.

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

It is not a de Polignac number, because 3855445 - 2⁹ = 3854933 is a prime.

It is a super-2 number, since 2×3855445² = 29728912296050, which contains 22 as substring.

3855445 is a modest number, since divided by 5445 gives 385 as remainder.

It is a self number, because there is not a number n which added to its sum of digits gives 3855445.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34995 + ... + 35104.

It is an arithmetic number, because the mean of its divisors is an integer number (630900).

Almost surely, 2^3855445 is an apocalyptic number.

It is an amenable number.

3855445 is a deficient number, since it is larger than the sum of its proper divisors (1191755).

3855445 is a wasteful number, since it uses less digits than its factorization.

3855445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70115.

The product of its digits is 48000, while the sum is 34.

The square root of 3855445 is about 1963.5287112747. The cubic root of 3855445 is about 156.8043731643.

The spelling of 3855445 in words is "three million, eight hundred fifty-five thousand, four hundred forty-five".