3944880 has 60 divisors (see below), whose sum is σ = 13250640. Its totient is φ = 1051776.

The previous prime is 3944873. The next prime is 3944881. The reversal of 3944880 is 884493.

It is a tau number, because it is divible by the number of its divisors (60).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (3944881) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2020 + ... + 3459.

It is an arithmetic number, because the mean of its divisors is an integer number (220844).

Almost surely, 2^3944880 is an apocalyptic number.

3944880 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3944880 is an abundant number, since it is smaller than the sum of its proper divisors (9305760).

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

3944880 is a wasteful number, since it uses less digits than its factorization.

3944880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5498 (or 5489 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The square root of 3944880 is about 1986.1721979728. The cubic root of 3944880 is about 158.0075838906.

The spelling of 3944880 in words is "three million, nine hundred forty-four thousand, eight hundred eighty".