3392720 has 20 divisors (see below), whose sum is σ = 7888260. Its totient is φ = 1357056.

The previous prime is 3392693. The next prime is 3392723. The reversal of 3392720 is 272933.

It can be written as a sum of positive squares in 2 ways, for example, as 1784896 + 1607824 = 1336^2 + 1268^2 .

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

It is a hoax number, since the sum of its digits (26) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 3392720.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3392723) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21125 + ... + 21284.

It is an arithmetic number, because the mean of its divisors is an integer number (394413).

Almost surely, 2^3392720 is an apocalyptic number.

It is an amenable number.

3392720 is an abundant number, since it is smaller than the sum of its proper divisors (4495540).

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

3392720 is a wasteful number, since it uses less digits than its factorization.

3392720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42422 (or 42416 counting only the distinct ones).

The product of its (nonzero) digits is 2268, while the sum is 26.

The square root of 3392720 is about 1841.9337664531. The cubic root of 3392720 is about 150.2620604142.

The spelling of 3392720 in words is "three million, three hundred ninety-two thousand, seven hundred twenty".