20733436 has 12 divisors (see below), whose sum is σ = 36327312. Its totient is φ = 10354208.

The previous prime is 20733359. The next prime is 20733467. The reversal of 20733436 is 63433702.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1296 + ... + 6568.

It is an arithmetic number, because the mean of its divisors is an integer number (3027276).

Almost surely, 2^20733436 is an apocalyptic number.

It is an amenable number.

20733436 is a deficient number, since it is larger than the sum of its proper divisors (15593876).

20733436 is a wasteful number, since it uses less digits than its factorization.

20733436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6260 (or 6258 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 28.

The square root of 20733436 is about 4553.3982913863. The cubic root of 20733436 is about 274.7200942610.

The spelling of 20733436 in words is "twenty million, seven hundred thirty-three thousand, four hundred thirty-six".