4155312 has 80 divisors (see below), whose sum is σ = 12499200. Its totient is φ = 1165056.

The previous prime is 4155301. The next prime is 4155331. The reversal of 4155312 is 2135514.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27814 + ... + 27962.

It is an arithmetic number, because the mean of its divisors is an integer number (156240).

Almost surely, 2^4155312 is an apocalyptic number.

4155312 is a gapful number since it is divisible by the number (42) 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 4155312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6249600).

4155312 is an abundant number, since it is smaller than the sum of its proper divisors (8343888).

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

4155312 is a wasteful number, since it uses less digits than its factorization.

4155312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250 (or 244 counting only the distinct ones).

The product of its digits is 600, while the sum is 21.

The square root of 4155312 is about 2038.4582409262. The cubic root of 4155312 is about 160.7685936535.

The spelling of 4155312 in words is "four million, one hundred fifty-five thousand, three hundred twelve".