3923140 has 48 divisors (see below), whose sum is σ = 9031680. Its totient is φ = 1422720.

The previous prime is 3923099. The next prime is 3923159. The reversal of 3923140 is 413293.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20445 + ... + 20635.

It is an arithmetic number, because the mean of its divisors is an integer number (188160).

Almost surely, 2^3923140 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 3923140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4515840).

3923140 is an abundant number, since it is smaller than the sum of its proper divisors (5108540).

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

3923140 is a wasteful number, since it uses less digits than its factorization.

3923140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 292 (or 290 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 22.

The square root of 3923140 is about 1980.6917983371. The cubic root of 3923140 is about 157.7167922444.

The spelling of 3923140 in words is "three million, nine hundred twenty-three thousand, one hundred forty".