3934420 has 48 divisors (see below), whose sum is σ = 9555840. Its totient is φ = 1332864.

The previous prime is 3934373. The next prime is 3934421. The reversal of 3934420 is 244393.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3934421) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21891 + ... + 22069.

It is an arithmetic number, because the mean of its divisors is an integer number (199080).

Almost surely, 2^3934420 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 3934420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4777920).

3934420 is an abundant number, since it is smaller than the sum of its proper divisors (5621420).

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

3934420 is a wasteful number, since it uses less digits than its factorization.

3934420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 352 (or 350 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 25.

The square root of 3934420 is about 1983.5372444197. The cubic root of 3934420 is about 157.8678058942.

The spelling of 3934420 in words is "three million, nine hundred thirty-four thousand, four hundred twenty".