3934720 has 80 divisors (see below), whose sum is σ = 9943560. Its totient is φ = 1490944.

The previous prime is 3934717. The next prime is 3934727. The reversal of 3934720 is 274393.

It can be written as a sum of positive squares in 4 ways, for example, as 3504384 + 430336 = 1872^2 + 656^2 .

It is a tau number, because it is divible by the number of its divisors (80).

It is a zygodrome in base 4.

It is not an unprimeable number, because it can be changed into a prime (3934727) 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, 74214 + ... + 74266.

Almost surely, 2^3934720 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 3934720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4971780).

3934720 is an abundant number, since it is smaller than the sum of its proper divisors (6008840).

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

3934720 is an equidigital number, since it uses as much as digits as its factorization.

3934720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105 (or 89 counting only the distinct ones).

The product of its (nonzero) digits is 4536, while the sum is 28.

The square root of 3934720 is about 1983.6128654554. The cubic root of 3934720 is about 157.8718182719.

The spelling of 3934720 in words is "three million, nine hundred thirty-four thousand, seven hundred twenty".