20796400 has 30 divisors (see below), whose sum is σ = 49964312. Its totient is φ = 8318400.

The previous prime is 20796383. The next prime is 20796401. The reversal of 20796400 is 469702.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20796401) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 25596 + ... + 26395.

Almost surely, 2^20796400 is an apocalyptic number.

20796400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20796400 is an abundant number, since it is smaller than the sum of its proper divisors (29167912).

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

20796400 is a wasteful number, since it uses less digits than its factorization.

20796400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52009 (or 51998 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 20796400 is about 4560.3070072091. The cubic root of 20796400 is about 274.9979063201.

The spelling of 20796400 in words is "twenty million, seven hundred ninety-six thousand, four hundred".