20263877040 has 320 divisors, whose sum is σ = 70426920960. Its totient is φ = 4777758720.

The previous prime is 20263877033. The next prime is 20263877047. The reversal of 20263877040 is 4077836202.

It is an interprime number because it is at equal distance from previous prime (20263877033) and next prime (20263877047).

It is a self number, because there is not a number n which added to its sum of digits gives 20263877040.

It is not an unprimeable number, because it can be changed into a prime (20263877047) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 24443346 + ... + 24444174.

It is an arithmetic number, because the mean of its divisors is an integer number (220084128).

Almost surely, 2^20263877040 is an apocalyptic number.

20263877040 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 20263877040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35213460480).

20263877040 is an abundant number, since it is smaller than the sum of its proper divisors (50163043920).

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

20263877040 is a wasteful number, since it uses less digits than its factorization.

20263877040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1100 (or 1094 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 39.

The spelling of 20263877040 in words is "twenty billion, two hundred sixty-three million, eight hundred seventy-seven thousand, forty".