2086390 has 32 divisors (see below), whose sum is σ = 4032000. Its totient is φ = 775008.

The previous prime is 2086363. The next prime is 2086397. The reversal of 2086390 is 936802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2086397) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14941 + ... + 15079.

It is an arithmetic number, because the mean of its divisors is an integer number (126000).

2^2086390 is an apocalyptic number.

2086390 is a deficient number, since it is larger than the sum of its proper divisors (1945610).

2086390 is a wasteful number, since it uses less digits than its factorization.

2086390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 244.

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 2086390 is about 1444.4341452624. The cubic root of 2086390 is about 127.7806709420.

The spelling of 2086390 in words is "two million, eighty-six thousand, three hundred ninety".