32420022540 has 24 divisors (see below), whose sum is σ = 90776063280. Its totient is φ = 8645339328.

The previous prime is 32420022521. The next prime is 32420022617. The reversal of 32420022540 is 4522002423.

It is a happy number.

It is a super-3 number, since 3×32420022540³ (a number of 33 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 32420022540.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 270166795 + ... + 270166914.

It is an arithmetic number, because the mean of its divisors is an integer number (3782335970).

Almost surely, 2^32420022540 is an apocalyptic number.

32420022540 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

32420022540 is an abundant number, since it is smaller than the sum of its proper divisors (58356040740).

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

32420022540 is a wasteful number, since it uses less digits than its factorization.

32420022540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 540333721 (or 540333719 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 24.

Adding to 32420022540 its reverse (4522002423), we get a palindrome (36942024963).

The spelling of 32420022540 in words is "thirty-two billion, four hundred twenty million, twenty-two thousand, five hundred forty".