3449520 has 80 divisors (see below), whose sum is σ = 11889120. Its totient is φ = 919296.

The previous prime is 3449519. The next prime is 3449531. The reversal of 3449520 is 259443.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1362 + ... + 2958.

It is an arithmetic number, because the mean of its divisors is an integer number (148614).

Almost surely, 2^3449520 is an apocalyptic number.

3449520 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 3449520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5944560).

3449520 is an abundant number, since it is smaller than the sum of its proper divisors (8439600).

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

3449520 is a wasteful number, since it uses less digits than its factorization.

3449520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1619 (or 1607 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 3449520 is about 1857.2883459495. The cubic root of 3449520 is about 151.0959727882.

It can be divided in two parts, 3449 and 520, that added together give a square (3969 = 63²).

The spelling of 3449520 in words is "three million, four hundred forty-nine thousand, five hundred twenty".