2321090 has 8 divisors (see below), whose sum is σ = 4177980. Its totient is φ = 928432.

The previous prime is 2321089. The next prime is 2321101. The reversal of 2321090 is 901232.

It can be written as a sum of positive squares in 2 ways, for example, as 2199289 + 121801 = 1483^2 + 349^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an alternating number because its digits alternate between even and odd.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 116045 + ... + 116064.

2^2321090 is an apocalyptic number.

2321090 is a deficient number, since it is larger than the sum of its proper divisors (1856890).

2321090 is a wasteful number, since it uses less digits than its factorization.

2321090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 232116.

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

The square root of 2321090 is about 1523.5123891849. The cubic root of 2321090 is about 132.4028479716.

The spelling of 2321090 in words is "two million, three hundred twenty-one thousand, ninety".