3890140 has 12 divisors (see below), whose sum is σ = 8169336. Its totient is φ = 1556048.

The previous prime is 3890129. The next prime is 3890149. The reversal of 3890140 is 410983.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3890149) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 97234 + ... + 97273.

It is an arithmetic number, because the mean of its divisors is an integer number (680778).

Almost surely, 2^3890140 is an apocalyptic number.

It is an amenable number.

3890140 is an abundant number, since it is smaller than the sum of its proper divisors (4279196).

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

3890140 is a wasteful number, since it uses less digits than its factorization.

3890140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194516 (or 194514 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 3890140 is about 1972.3437834211. The cubic root of 3890140 is about 157.2733280863.

The spelling of 3890140 in words is "three million, eight hundred ninety thousand, one hundred forty".