3623420 has 24 divisors (see below), whose sum is σ = 7941024. Its totient is φ = 1386176.

The previous prime is 3623413. The next prime is 3623423. The reversal of 3623420 is 243263.

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 = 3623392 and 3623401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3623423) 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, 3479 + ... + 4398.

It is an arithmetic number, because the mean of its divisors is an integer number (330876).

Almost surely, 2^3623420 is an apocalyptic number.

It is an amenable number.

3623420 is an abundant number, since it is smaller than the sum of its proper divisors (4317604).

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

3623420 is a wasteful number, since it uses less digits than its factorization.

3623420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7909 (or 7907 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 3623420 is about 1903.5283029154. The cubic root of 3623420 is about 153.5935196015.

Adding to 3623420 its reverse (243263), we get a palindrome (3866683).

The spelling of 3623420 in words is "three million, six hundred twenty-three thousand, four hundred twenty".