32212132440 has 256 divisors, whose sum is σ = 105293260800. Its totient is φ = 7852425216.

The previous prime is 32212132427. The next prime is 32212132501. The reversal of 32212132440 is 4423121223.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 32212132440.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 13326112 + ... + 13328528.

It is an arithmetic number, because the mean of its divisors is an integer number (411301800).

Almost surely, 2^32212132440 is an apocalyptic number.

32212132440 is a gapful number since it is divisible by the number (30) 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 32212132440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (52646630400).

32212132440 is an abundant number, since it is smaller than the sum of its proper divisors (73081128360).

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

32212132440 is a wasteful number, since it uses less digits than its factorization.

32212132440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2634 (or 2630 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 32212132440 its reverse (4423121223), we get a palindrome (36635253663).

The spelling of 32212132440 in words is "thirty-two billion, two hundred twelve million, one hundred thirty-two thousand, four hundred forty".