20460828 has 24 divisors (see below), whose sum is σ = 48319488. Its totient is φ = 6737776.

The previous prime is 20460799. The next prime is 20460857. The reversal of 20460828 is 82806402.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (20460799) and next prime (20460857).

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 20460795 and 20460804.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9276 + ... + 11267.

It is an arithmetic number, because the mean of its divisors is an integer number (2013312).

Almost surely, 2^20460828 is an apocalyptic number.

It is an amenable number.

20460828 is an abundant number, since it is smaller than the sum of its proper divisors (27858660).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20460828 is a wasteful number, since it uses less digits than its factorization.

20460828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20633 (or 20631 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 30.

The square root of 20460828 is about 4523.3646768749. The cubic root of 20460828 is about 273.5107507023.

The spelling of 20460828 in words is "twenty million, four hundred sixty thousand, eight hundred twenty-eight".