3244140 has 72 divisors (see below), whose sum is σ = 10024560. Its totient is φ = 849024.

The previous prime is 3244099. The next prime is 3244147. The reversal of 3244140 is 414423.

3244140 = T₁ + T₂ + ... + T₂₆₈.

3244140 is a nontrivial binomial coefficient, being equal to C(270, 3).

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

It is not an unprimeable number, because it can be changed into a prime (3244147) by changing a digit.

It is the 268-th tetrahedral number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11926 + ... + 12194.

It is an arithmetic number, because the mean of its divisors is an integer number (139230).

Almost surely, 2^3244140 is an apocalyptic number.

3244140 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 3244140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5012280).

3244140 is an abundant number, since it is smaller than the sum of its proper divisors (6780420).

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

3244140 is a wasteful number, since it uses less digits than its factorization.

3244140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 351 (or 346 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 3244140 is about 1801.1496328734. The cubic root of 3244140 is about 148.0357230544.

Adding to 3244140 its reverse (414423), we get a palindrome (3658563).

The spelling of 3244140 in words is "three million, two hundred forty-four thousand, one hundred forty".