20273800 has 48 divisors (see below), whose sum is σ = 47496960. Its totient is φ = 8047680.

The previous prime is 20273791. The next prime is 20273819. The reversal of 20273800 is 837202.

It is a happy number.

It is a super-2 number, since 2×20273800² = 822053932880000, which contains 22 as substring.

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 11 ways as a sum of consecutive naturals, for example, 33097 + ... + 33703.

It is an arithmetic number, because the mean of its divisors is an integer number (989520).

Almost surely, 2^20273800 is an apocalyptic number.

20273800 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20273800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23748480).

20273800 is an abundant number, since it is smaller than the sum of its proper divisors (27223160).

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

20273800 is a wasteful number, since it uses less digits than its factorization.

20273800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 790 (or 781 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 22.

The square root of 20273800 is about 4502.6436678911. The cubic root of 20273800 is about 272.6748309943.

The spelling of 20273800 in words is "twenty million, two hundred seventy-three thousand, eight hundred".