20042300 has 72 divisors (see below), whose sum is σ = 45830400. Its totient is φ = 7600320.

The previous prime is 20042299. The next prime is 20042327. The reversal of 20042300 is 324002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 253661 + ... + 253739.

Almost surely, 2^20042300 is an apocalyptic number.

20042300 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 20042300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22915200).

20042300 is an abundant number, since it is smaller than the sum of its proper divisors (25788100).

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

20042300 is a wasteful number, since it uses less digits than its factorization.

20042300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195 (or 188 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 11.

The square root of 20042300 is about 4476.8627408041. The cubic root of 20042300 is about 271.6329933464.

Adding to 20042300 its reverse (324002), we get a palindrome (20366302).

The spelling of 20042300 in words is "twenty million, forty-two thousand, three hundred".