3388720 has 20 divisors (see below), whose sum is σ = 7878960. Its totient is φ = 1355456.

The previous prime is 3388717. The next prime is 3388727. The reversal of 3388720 is 278833.

3388720 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (20).

It is a super-2 number, since 2×3388720² = 22966846476800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3388727) 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 3 ways as a sum of consecutive naturals, for example, 21100 + ... + 21259.

It is an arithmetic number, because the mean of its divisors is an integer number (393948).

Almost surely, 2^3388720 is an apocalyptic number.

It is an amenable number.

3388720 is an abundant number, since it is smaller than the sum of its proper divisors (4490240).

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

3388720 is a wasteful number, since it uses less digits than its factorization.

3388720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42372 (or 42366 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 3388720 is about 1840.8476308484. The cubic root of 3388720 is about 150.2029844508.

The spelling of 3388720 in words is "three million, three hundred eighty-eight thousand, seven hundred twenty".