20248829 has 4 divisors (see below), whose sum is σ = 20719776. Its totient is φ = 19777884.

The previous prime is 20248777. The next prime is 20248831. The reversal of 20248829 is 92884202.

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, and also an emirpimes, since its reverse is a distinct semiprime: 92884202 = 2 ⋅46442101.

It is a cyclic number.

It is not a de Polignac number, because 20248829 - 2²⁴ = 3471613 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20248729) 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, 235409 + ... + 235494.

It is an arithmetic number, because the mean of its divisors is an integer number (5179944).

Almost surely, 2^20248829 is an apocalyptic number.

It is an amenable number.

20248829 is a deficient number, since it is larger than the sum of its proper divisors (470947).

20248829 is an equidigital number, since it uses as much as digits as its factorization.

20248829 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 470946.

The product of its (nonzero) digits is 18432, while the sum is 35.

The square root of 20248829 is about 4499.8698870078. The cubic root of 20248829 is about 272.5628348773.

The spelling of 20248829 in words is "twenty million, two hundred forty-eight thousand, eight hundred twenty-nine".