20833628 has 6 divisors (see below), whose sum is σ = 36458856. Its totient is φ = 10416812.

The previous prime is 20833609. The next prime is 20833651. The reversal of 20833628 is 82633802.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 20833594 and 20833603.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2604200 + ... + 2604207.

It is an arithmetic number, because the mean of its divisors is an integer number (6076476).

Almost surely, 2^20833628 is an apocalyptic number.

It is an amenable number.

20833628 is a deficient number, since it is larger than the sum of its proper divisors (15625228).

20833628 is a wasteful number, since it uses less digits than its factorization.

20833628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5208411 (or 5208409 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 32.

The square root of 20833628 is about 4564.3869248783. The cubic root of 20833628 is about 275.1619013590.

The spelling of 20833628 in words is "twenty million, eight hundred thirty-three thousand, six hundred twenty-eight".