3654020 has 12 divisors (see below), whose sum is σ = 7673484. Its totient is φ = 1461600.

The previous prime is 3654017. The next prime is 3654037. The reversal of 3654020 is 204563.

It can be written as a sum of positive squares in 2 ways, for example, as 2669956 + 984064 = 1634^2 + 992^2 .

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 182701 = 3654020 / (3 + 6 + 5 + 4 + 0 + 2 + 0).

It is a junction number, because it is equal to n+sod(n) for n = 3653983 and 3654001.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 91331 + ... + 91370.

It is an arithmetic number, because the mean of its divisors is an integer number (639457).

Almost surely, 2^3654020 is an apocalyptic number.

It is an amenable number.

3654020 is an abundant number, since it is smaller than the sum of its proper divisors (4019464).

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

3654020 is a wasteful number, since it uses less digits than its factorization.

3654020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182710 (or 182708 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 3654020 is about 1911.5491100152. The cubic root of 3654020 is about 154.0246769923.

Adding to 3654020 its reverse (204563), we get a palindrome (3858583).

The spelling of 3654020 in words is "three million, six hundred fifty-four thousand, twenty".