3855480 has 96 divisors (see below), whose sum is σ = 12344400. Its totient is φ = 963072.

The previous prime is 3855479. The next prime is 3855493. The reversal of 3855480 is 845583.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 43276 + ... + 43364.

Almost surely, 2^3855480 is an apocalyptic number.

3855480 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3855480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6172200).

3855480 is an abundant number, since it is smaller than the sum of its proper divisors (8488920).

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

3855480 is a wasteful number, since it uses less digits than its factorization.

3855480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141 (or 118 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 33.

The square root of 3855480 is about 1963.5376237801. The cubic root of 3855480 is about 156.8048476566.

The spelling of 3855480 in words is "three million, eight hundred fifty-five thousand, four hundred eighty".