4128390 has 48 divisors (see below), whose sum is σ = 12269088. Its totient is φ = 943488.

The previous prime is 4128379. The next prime is 4128391. The reversal of 4128390 is 938214.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4128391) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2647 + ... + 3906.

It is an arithmetic number, because the mean of its divisors is an integer number (255606).

Almost surely, 2^4128390 is an apocalyptic number.

4128390 is an abundant number, since it is smaller than the sum of its proper divisors (8140698).

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

4128390 is a wasteful number, since it uses less digits than its factorization.

4128390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6573 (or 6570 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 4128390 is about 2031.8439900740. The cubic root of 4128390 is about 160.4206379707.

The spelling of 4128390 in words is "four million, one hundred twenty-eight thousand, three hundred ninety".