32421024420240 has 80 divisors (see below), whose sum is σ = 100558382601600. Its totient is φ = 8641029574656.

The previous prime is 32421024420227. The next prime is 32421024420241. The reversal of 32421024420240 is 4202442012423.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×32421024420240² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 32421024420198 and 32421024420207.

It is not an unprimeable number, because it can be changed into a prime (32421024420241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35303020 + ... + 36209739.

It is an arithmetic number, because the mean of its divisors is an integer number (1256979782520).

Almost surely, 2^{32421024420240} is an apocalyptic number.

32421024420240 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

32421024420240 is an abundant number, since it is smaller than the sum of its proper divisors (68137358181360).

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

32421024420240 is a wasteful number, since it uses less digits than its factorization.

32421024420240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71514664 (or 71514658 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 30.

Adding to 32421024420240 its reverse (4202442012423), we get a palindrome (36623466432663).

The spelling of 32421024420240 in words is "thirty-two trillion, four hundred twenty-one billion, twenty-four million, four hundred twenty thousand, two hundred forty".