2290312 has 8 divisors (see below), whose sum is σ = 4294350. Its totient is φ = 1145152.

The previous prime is 2290283. The next prime is 2290339. The reversal of 2290312 is 2130922.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1179396 + 1110916 = 1086^2 + 1054^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 2290312.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 143137 + ... + 143152.

2^2290312 is an apocalyptic number.

It is an amenable number.

2290312 is a deficient number, since it is larger than the sum of its proper divisors (2004038).

2290312 is a wasteful number, since it uses less digits than its factorization.

2290312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 286295 (or 286291 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 2290312 is about 1513.3776792328. The cubic root of 2290312 is about 131.8150148340.

The spelling of 2290312 in words is "two million, two hundred ninety thousand, three hundred twelve".