20940300 has 108 divisors (see below), whose sum is σ = 67026960. Its totient is φ = 5466240.

The previous prime is 20940289. The next prime is 20940329. The reversal of 20940300 is 304902.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 47481 + ... + 47919.

It is an arithmetic number, because the mean of its divisors is an integer number (620620).

Almost surely, 2^20940300 is an apocalyptic number.

20940300 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 20940300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33513480).

20940300 is an abundant number, since it is smaller than the sum of its proper divisors (46086660).

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

20940300 is a wasteful number, since it uses less digits than its factorization.

20940300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 512 (or 502 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 20940300 is about 4576.0572548866. The cubic root of 20940300 is about 275.6307285897.

The spelling of 20940300 in words is "twenty million, nine hundred forty thousand, three hundred".