3263440 has 60 divisors (see below), whose sum is σ = 8078724. Its totient is φ = 1225728.

The previous prime is 3263431. The next prime is 3263441. The reversal of 3263440 is 443623.

3263440 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 467856 + 2795584 = 684^2 + 1672^2 .

It is a hoax number, since the sum of its digits (22) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3263441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 28824 + ... + 28936.

Almost surely, 2^3263440 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 3263440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4039362).

3263440 is an abundant number, since it is smaller than the sum of its proper divisors (4815284).

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

3263440 is a wasteful number, since it uses less digits than its factorization.

3263440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164 (or 139 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 22.

The square root of 3263440 is about 1806.4993772487. The cubic root of 3263440 is about 148.3287069494.

The spelling of 3263440 in words is "three million, two hundred sixty-three thousand, four hundred forty".