2031290 has 16 divisors (see below), whose sum is σ = 3849120. Its totient is φ = 769680.

The previous prime is 2031287. The next prime is 2031301. The reversal of 2031290 is 921302.

It is a super-2 number, since 2×2031290² = 8252278128200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5156 + ... + 5535.

It is an arithmetic number, because the mean of its divisors is an integer number (240570).

2^2031290 is an apocalyptic number.

2031290 is a deficient number, since it is larger than the sum of its proper divisors (1817830).

2031290 is a wasteful number, since it uses less digits than its factorization.

2031290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10717.

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 2031290 is about 1425.2333142331. The cubic root of 2031290 is about 126.6457567823.

Adding to 2031290 its reverse (921302), we get a palindrome (2952592).

It can be divided in two parts, 20312 and 90, that added together give a palindrome (20402).

The spelling of 2031290 in words is "two million, thirty-one thousand, two hundred ninety".