32430040540 has 144 divisors (see below), whose sum is σ = 73779582240. Its totient is φ = 11957568000.

The previous prime is 32430040501. The next prime is 32430040543. The reversal of 32430040540 is 4504003423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32430040543) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 46262190 + ... + 46262890.

It is an arithmetic number, because the mean of its divisors is an integer number (512358210).

Almost surely, 2^32430040540 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 32430040540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36889791120).

32430040540 is an abundant number, since it is smaller than the sum of its proper divisors (41349541700).

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

32430040540 is a wasteful number, since it uses less digits than its factorization.

32430040540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 884 (or 851 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 25.

Adding to 32430040540 its reverse (4504003423), we get a palindrome (36934043963).

The spelling of 32430040540 in words is "thirty-two billion, four hundred thirty million, forty thousand, five hundred forty".