3904620 has 48 divisors (see below), whose sum is σ = 11128320. Its totient is φ = 1022656.

The previous prime is 3904603. The next prime is 3904631. The reversal of 3904620 is 264093.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2989 + ... + 4091.

It is an arithmetic number, because the mean of its divisors is an integer number (231840).

Almost surely, 2^3904620 is an apocalyptic number.

3904620 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3904620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5564160).

3904620 is an abundant number, since it is smaller than the sum of its proper divisors (7223700).

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

3904620 is a wasteful number, since it uses less digits than its factorization.

3904620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1174 (or 1172 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 24.

The square root of 3904620 is about 1976.0111335719. The cubic root of 3904620 is about 157.4682223619.

The spelling of 3904620 in words is "three million, nine hundred four thousand, six hundred twenty".