3856380 has 48 divisors (see below), whose sum is σ = 11781504. Its totient is φ = 934720.

The previous prime is 3856379. The next prime is 3856381. The reversal of 3856380 is 836583.

It is an interprime number because it is at equal distance from previous prime (3856379) and next prime (3856381).

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3856381) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2262 + ... + 3581.

It is an arithmetic number, because the mean of its divisors is an integer number (245448).

Almost surely, 2^3856380 is an apocalyptic number.

3856380 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3856380 is an abundant number, since it is smaller than the sum of its proper divisors (7925124).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3856380 is a wasteful number, since it uses less digits than its factorization.

3856380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5866 (or 5864 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 33.

The square root of 3856380 is about 1963.7667885979. The cubic root of 3856380 is about 156.8170479000.

The spelling of 3856380 in words is "three million, eight hundred fifty-six thousand, three hundred eighty".