3250240 has 56 divisors (see below), whose sum is σ = 8851392. Its totient is φ = 1113600.

The previous prime is 3250229. The next prime is 3250243. The reversal of 3250240 is 420523.

It is a tau number, because it is divible by the number of its divisors (56).

It is a Harshad number since it is a multiple of its sum of digits (16).

It is not an unprimeable number, because it can be changed into a prime (3250243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1515 + ... + 2965.

Almost surely, 2^3250240 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3250240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4425696).

3250240 is an abundant number, since it is smaller than the sum of its proper divisors (5601152).

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

3250240 is a wasteful number, since it uses less digits than its factorization.

3250240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1475 (or 1465 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 16.

The square root of 3250240 is about 1802.8422005267. The cubic root of 3250240 is about 148.1284494796.

Adding to 3250240 its reverse (420523), we get a palindrome (3670763).

The spelling of 3250240 in words is "three million, two hundred fifty thousand, two hundred forty".