3144540 has 48 divisors (see below), whose sum is σ = 10063872. Its totient is φ = 718656.

The previous prime is 3144539. The next prime is 3144551. The reversal of 3144540 is 454413.

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

It is a congruent number.

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, 3324 + ... + 4163.

It is an arithmetic number, because the mean of its divisors is an integer number (209664).

Almost surely, 2^3144540 is an apocalyptic number.

3144540 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3144540 is an abundant number, since it is smaller than the sum of its proper divisors (6919332).

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

3144540 is a wasteful number, since it uses less digits than its factorization.

3144540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7506 (or 7504 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 3144540 is about 1773.2850870630. The cubic root of 3144540 is about 146.5049756218.

Adding to 3144540 its reverse (454413), we get a palindrome (3598953).

The spelling of 3144540 in words is "three million, one hundred forty-four thousand, five hundred forty".