4086490 has 16 divisors (see below), whose sum is σ = 7402752. Its totient is φ = 1624144.

The previous prime is 4086487. The next prime is 4086491. The reversal of 4086490 is 946804.

It is not an unprimeable number, because it can be changed into a prime (4086491) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 447 + ... + 2893.

It is an arithmetic number, because the mean of its divisors is an integer number (462672).

Almost surely, 2^4086490 is an apocalyptic number.

4086490 is a deficient number, since it is larger than the sum of its proper divisors (3316262).

4086490 is a wasteful number, since it uses less digits than its factorization.

4086490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2621.

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 4086490 is about 2021.5068637034. The cubic root of 4086490 is about 159.8760759174.

It can be divided in two parts, 40 and 86490, that multiplied together give a square (3459600 = 1860²).

The spelling of 4086490 in words is "four million, eighty-six thousand, four hundred ninety".