20410423240 has 32 divisors (see below), whose sum is σ = 46017794880. Its totient is φ = 8147397312.

The previous prime is 20410423217. The next prime is 20410423249. The reversal of 20410423240 is 4232401402.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (20410423249) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 504402 + ... + 543361.

It is an arithmetic number, because the mean of its divisors is an integer number (1438056090).

Almost surely, 2^20410423240 is an apocalyptic number.

20410423240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20410423240 is an abundant number, since it is smaller than the sum of its proper divisors (25607371640).

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

20410423240 is a wasteful number, since it uses less digits than its factorization.

20410423240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1048261 (or 1048257 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 22.

Adding to 20410423240 its reverse (4232401402), we get a palindrome (24642824642).

The spelling of 20410423240 in words is "twenty billion, four hundred ten million, four hundred twenty-three thousand, two hundred forty".