32112403440 has 320 divisors, whose sum is σ = 110773910016. Its totient is φ = 7645188096.

The previous prime is 32112403409. The next prime is 32112403451. The reversal of 32112403440 is 4430421123.

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 32112403440.

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, 14354002 + ... + 14356238.

Almost surely, 2^32112403440 is an apocalyptic number.

32112403440 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 32112403440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (55386955008).

32112403440 is an abundant number, since it is smaller than the sum of its proper divisors (78661506576).

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

32112403440 is a wasteful number, since it uses less digits than its factorization.

32112403440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2416 (or 2410 counting only the distinct ones).

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

Adding to 32112403440 its reverse (4430421123), we get a palindrome (36542824563).

The spelling of 32112403440 in words is "thirty-two billion, one hundred twelve million, four hundred three thousand, four hundred forty".