3249440 has 48 divisors (see below), whose sum is σ = 8019648. Its totient is φ = 1241856.

The previous prime is 3249419. The next prime is 3249443. The reversal of 3249440 is 449423.

3249440 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (3249443) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3239 + ... + 4121.

It is an arithmetic number, because the mean of its divisors is an integer number (167076).

Almost surely, 2^3249440 is an apocalyptic number.

3249440 is the 1472-nd pentagonal number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3249440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4009824).

3249440 is an abundant number, since it is smaller than the sum of its proper divisors (4770208).

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

3249440 is a wasteful number, since it uses less digits than its factorization.

3249440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 921 (or 913 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 26.

The square root of 3249440 is about 1802.6203149859. The cubic root of 3249440 is about 148.1162952507.

The spelling of 3249440 in words is "three million, two hundred forty-nine thousand, four hundred forty".