3333440 has 56 divisors (see below), whose sum is σ = 8668512. Its totient is φ = 1210880.

The previous prime is 3333439. The next prime is 3333469. The reversal of 3333440 is 443333.

It is a happy number.

It is a super-2 number, since 2×3333440² = 22223644467200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3047 + ... + 3993.

Almost surely, 2^3333440 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 3333440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4334256).

3333440 is an abundant number, since it is smaller than the sum of its proper divisors (5335072).

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

3333440 is a wasteful number, since it uses less digits than its factorization.

3333440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 975 (or 965 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 20.

The square root of 3333440 is about 1825.7710699866. The cubic root of 3333440 is about 149.3817515899.

Adding to 3333440 its reverse (443333), we get a palindrome (3776773).

It can be divided in two parts, 3333 and 440, that added together give a palindrome (3773).

The spelling of 3333440 in words is "three million, three hundred thirty-three thousand, four hundred forty".