20234636874240 has 320 divisors, whose sum is σ = 66312885703680. Its totient is φ = 5260519669760.

The previous prime is 20234636874187. The next prime is 20234636874241. The reversal of 20234636874240 is 4247863643202.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (320).

It is not an unprimeable number, because it can be changed into a prime (20234636874241) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 453089992 + ... + 453134648.

It is an arithmetic number, because the mean of its divisors is an integer number (207227767824).

Almost surely, 2^{20234636874240} is an apocalyptic number.

20234636874240 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 20234636874240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33156442851840).

20234636874240 is an abundant number, since it is smaller than the sum of its proper divisors (46078248829440).

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

20234636874240 is a wasteful number, since it uses less digits than its factorization.

20234636874240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46163 (or 46147 counting only the distinct ones).

The product of its (nonzero) digits is 9289728, while the sum is 51.

The spelling of 20234636874240 in words is "twenty trillion, two hundred thirty-four billion, six hundred thirty-six million, eight hundred seventy-four thousand, two hundred forty".