20040245200 has 60 divisors (see below), whose sum is σ = 48272767488. Its totient is φ = 7995107200.

The previous prime is 20040245189. The next prime is 20040245237. The reversal of 20040245200 is 254204002.

It is a super-2 number, since 2×20040245200² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 87795 + ... + 218605.

Almost surely, 2^20040245200 is an apocalyptic number.

20040245200 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 20040245200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24136383744).

20040245200 is an abundant number, since it is smaller than the sum of its proper divisors (28232522288).

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

20040245200 is a wasteful number, since it uses less digits than its factorization.

20040245200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131212 (or 131201 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 19.

Adding to 20040245200 its reverse (254204002), we get a palindrome (20294449202).

The spelling of 20040245200 in words is "twenty billion, forty million, two hundred forty-five thousand, two hundred".