20340252600 has 96 divisors (see below), whose sum is σ = 63096876720. Its totient is φ = 5420446720.

The previous prime is 20340252587. The next prime is 20340252617. The reversal of 20340252600 is 625204302.

It is a Harshad number since it is a multiple of its sum of digits (24).

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, 957292 + ... + 978308.

Almost surely, 2^20340252600 is an apocalyptic number.

20340252600 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 20340252600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31548438360).

20340252600 is an abundant number, since it is smaller than the sum of its proper divisors (42756624120).

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

20340252600 is a wasteful number, since it uses less digits than its factorization.

20340252600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22649 (or 22640 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 24.

Adding to 20340252600 its reverse (625204302), we get a palindrome (20965456902).

The spelling of 20340252600 in words is "twenty billion, three hundred forty million, two hundred fifty-two thousand, six hundred".