3132240 has 80 divisors (see below), whose sum is σ = 10046976. Its totient is φ = 806400.

The previous prime is 3132187. The next prime is 3132257. The reversal of 3132240 is 422313.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (15).

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, 7230 + ... + 7650.

Almost surely, 2^3132240 is an apocalyptic number.

3132240 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 3132240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5023488).

3132240 is an abundant number, since it is smaller than the sum of its proper divisors (6914736).

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

3132240 is a wasteful number, since it uses less digits than its factorization.

3132240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 468 (or 462 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 3132240 is about 1769.8135495018. The cubic root of 3132240 is about 146.3137059007.

Adding to 3132240 its reverse (422313), we get a palindrome (3554553).

The spelling of 3132240 in words is "three million, one hundred thirty-two thousand, two hundred forty".