3390720 has 72 divisors (see below), whose sum is σ = 10841376. Its totient is φ = 903168.

The previous prime is 3390719. The next prime is 3390731. The reversal of 3390720 is 270933.

It is a super-2 number, since 2×3390720² = 22993964236800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

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, 3399 + ... + 4281.

Almost surely, 2^3390720 is an apocalyptic number.

3390720 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3390720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5420688).

3390720 is an abundant number, since it is smaller than the sum of its proper divisors (7450656).

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

3390720 is an equidigital number, since it uses as much as digits as its factorization.

3390720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 907 (or 893 counting only the distinct ones).

The product of its (nonzero) digits is 1134, while the sum is 24.

The square root of 3390720 is about 1841.3907787322. The cubic root of 3390720 is about 150.2325282401.

The spelling of 3390720 in words is "three million, three hundred ninety thousand, seven hundred twenty".