20410324040 has 64 divisors (see below), whose sum is σ = 46593360000. Its totient is φ = 8045194752.

The previous prime is 20410324027. The next prime is 20410324043. The reversal of 20410324040 is 4042301402.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is not an unprimeable number, because it can be changed into a prime (20410324043) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4374749 + ... + 4379411.

It is an arithmetic number, because the mean of its divisors is an integer number (728021250).

Almost surely, 2^20410324040 is an apocalyptic number.

20410324040 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 20410324040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23296680000).

20410324040 is an abundant number, since it is smaller than the sum of its proper divisors (26183035960).

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

20410324040 is a wasteful number, since it uses less digits than its factorization.

20410324040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6246 (or 6242 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

Adding to 20410324040 its reverse (4042301402), we get a palindrome (24452625442).

The spelling of 20410324040 in words is "twenty billion, four hundred ten million, three hundred twenty-four thousand, forty".