3155040 has 144 divisors (see below), whose sum is σ = 12343968. Its totient is φ = 718848.

The previous prime is 3155029. The next prime is 3155041. The reversal of 3155040 is 405513.

It is a tau number, because it is divible by the number of its divisors (144).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3155041) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9924 + ... + 10236.

It is an arithmetic number, because the mean of its divisors is an integer number (85722).

Almost surely, 2^3155040 is an apocalyptic number.

3155040 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 3155040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6171984).

3155040 is an abundant number, since it is smaller than the sum of its proper divisors (9188928).

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

3155040 is a wasteful number, since it uses less digits than its factorization.

3155040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 341 (or 330 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 18.

The square root of 3155040 is about 1776.2432265881. The cubic root of 3155040 is about 146.6678604127.

It can be divided in two parts, 315 and 5040, that multiplied together give a square (1587600 = 1260²).

The spelling of 3155040 in words is "three million, one hundred fifty-five thousand, forty".