4399020 has 36 divisors (see below), whose sum is σ = 13344240. Its totient is φ = 1173024.

The previous prime is 4399007. The next prime is 4399061. The reversal of 4399020 is 209934.

It is a tau number, because it is divible by the number of its divisors (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12040 + ... + 12399.

Almost surely, 2^4399020 is an apocalyptic number.

It is an amenable number.

4399020 is an abundant number, since it is smaller than the sum of its proper divisors (8945220).

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

4399020 is a wasteful number, since it uses less digits than its factorization.

4399020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24454 (or 24449 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 27.

The square root of 4399020 is about 2097.3840849973. The cubic root of 4399020 is about 163.8520875373.

The spelling of 4399020 in words is "four million, three hundred ninety-nine thousand, twenty".