3609020 has 24 divisors (see below), whose sum is σ = 7824768. Its totient is φ = 1396800.

The previous prime is 3609013. The next prime is 3609029. The reversal of 3609020 is 209063.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 3608983 and 3609001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3609029) 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, 2291 + ... + 3530.

It is an arithmetic number, because the mean of its divisors is an integer number (326032).

Almost surely, 2^3609020 is an apocalyptic number.

It is an amenable number.

3609020 is an abundant number, since it is smaller than the sum of its proper divisors (4215748).

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

3609020 is a wasteful number, since it uses less digits than its factorization.

3609020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5861 (or 5859 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 20.

The square root of 3609020 is about 1899.7420877582. The cubic root of 3609020 is about 153.3897817789.

The spelling of 3609020 in words is "three million, six hundred nine thousand, twenty".