3429520 has 40 divisors (see below), whose sum is σ = 8053056. Its totient is φ = 1358208.

The previous prime is 3429509. The next prime is 3429523. The reversal of 3429520 is 259243.

It is a happy number.

3429520 is digitally balanced in base 5, 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 (40).

It is not an unprimeable number, because it can be changed into a prime (3429523) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12909 + ... + 13171.

Almost surely, 2^3429520 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 3429520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4026528).

3429520 is an abundant number, since it is smaller than the sum of its proper divisors (4623536).

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

3429520 is a wasteful number, since it uses less digits than its factorization.

3429520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 439 (or 433 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 3429520 is about 1851.8963253919. The cubic root of 3429520 is about 150.8033930853.

The spelling of 3429520 in words is "three million, four hundred twenty-nine thousand, five hundred twenty".