20040410240 has 32 divisors (see below), whose sum is σ = 47909107260. Its totient is φ = 8016163840.

The previous prime is 20040410231. The next prime is 20040410249. The reversal of 20040410240 is 4201404002.

It is an interprime number because it is at equal distance from previous prime (20040410231) and next prime (20040410249).

It can be written as a sum of positive squares in 2 ways, for example, as 19338796096 + 701614144 = 139064^2 + 26488^2 .

It is a tau number, because it is divible by the number of its divisors (32).

It is not an unprimeable number, because it can be changed into a prime (20040410249) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15655931 + ... + 15657210.

Almost surely, 2^20040410240 is an apocalyptic number.

20040410240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20040410240 is an abundant number, since it is smaller than the sum of its proper divisors (27868697020).

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

20040410240 is an equidigital number, since it uses as much as digits as its factorization.

20040410240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31313160 (or 31313148 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 17.

Adding to 20040410240 its reverse (4201404002), we get a palindrome (24241814242).

The spelling of 20040410240 in words is "twenty billion, forty million, four hundred ten thousand, two hundred forty".