20367900 has 216 divisors, whose sum is σ = 75557664. Its totient is φ = 4492800.

The previous prime is 20367883. The next prime is 20367901. The reversal of 20367900 is 976302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20367901) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 333870 + ... + 333930.

It is an arithmetic number, because the mean of its divisors is an integer number (349804).

Almost surely, 2^20367900 is an apocalyptic number.

20367900 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 20367900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37778832).

20367900 is an abundant number, since it is smaller than the sum of its proper divisors (55189764).

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

20367900 is a wasteful number, since it uses less digits than its factorization.

20367900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141 (or 131 counting only the distinct ones).

The product of its (nonzero) digits is 2268, while the sum is 27.

The square root of 20367900 is about 4513.0809875295. The cubic root of 20367900 is about 273.0960496067.

The spelling of 20367900 in words is "twenty million, three hundred sixty-seven thousand, nine hundred".