20283469 has 4 divisors (see below), whose sum is σ = 21351040. Its totient is φ = 19215900.

The previous prime is 20283467. The next prime is 20283491. The reversal of 20283469 is 96438202.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20283469 - 2¹ = 20283467 is a prime.

It is a super-2 number, since 2×20283469² = 822838229347922, 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 (20283463) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 533757 + ... + 533794.

It is an arithmetic number, because the mean of its divisors is an integer number (5337760).

Almost surely, 2^20283469 is an apocalyptic number.

It is an amenable number.

20283469 is a deficient number, since it is larger than the sum of its proper divisors (1067571).

20283469 is a wasteful number, since it uses less digits than its factorization.

20283469 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1067570.

The product of its (nonzero) digits is 20736, while the sum is 34.

The square root of 20283469 is about 4503.7172424565. The cubic root of 20283469 is about 272.7181722182.

The spelling of 20283469 in words is "twenty million, two hundred eighty-three thousand, four hundred sixty-nine".