2146469 has 8 divisors (see below), whose sum is σ = 2327640. Its totient is φ = 1979328.

The previous prime is 2146457. The next prime is 2146477. The reversal of 2146469 is 9646412.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 214369 + 1932100 = 463^2 + 1390^2 .

It is not a de Polignac number, because 2146469 - 2⁸ = 2146213 is a prime.

It is a super-2 number, since 2×2146469² = 9214658335922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2146439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1709 + ... + 2685.

It is an arithmetic number, because the mean of its divisors is an integer number (290955).

2^2146469 is an apocalyptic number.

It is an amenable number.

2146469 is a deficient number, since it is larger than the sum of its proper divisors (181171).

2146469 is an frugal number, since it uses more digits than its factorization.

2146469 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1016 (or 990 counting only the distinct ones).

The product of its digits is 10368, while the sum is 32.

The square root of 2146469 is about 1465.0832740838. The cubic root of 2146469 is about 128.9955930630.

The spelling of 2146469 in words is "two million, one hundred forty-six thousand, four hundred sixty-nine".