3623920 has 40 divisors (see below), whose sum is σ = 8530704. Its totient is φ = 1431552.

The previous prime is 3623909. The next prime is 3623929. The reversal of 3623920 is 293263.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3623929) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7527 + ... + 7993.

Almost surely, 2^3623920 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 3623920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4265352).

3623920 is an abundant number, since it is smaller than the sum of its proper divisors (4906784).

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

3623920 is a wasteful number, since it uses less digits than its factorization.

3623920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 577 (or 571 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 25.

The square root of 3623920 is about 1903.6596334429. The cubic root of 3623920 is about 153.6005841268.

The spelling of 3623920 in words is "three million, six hundred twenty-three thousand, nine hundred twenty".