32504431440 has 80 divisors (see below), whose sum is σ = 108514804608. Its totient is φ = 8001090048.

The previous prime is 32504431433. The next prime is 32504431471. The reversal of 32504431440 is 4413440523.

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

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 = 32504431398 and 32504431407.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5205924 + ... + 5212163.

Almost surely, 2^32504431440 is an apocalyptic number.

32504431440 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

32504431440 is an abundant number, since it is smaller than the sum of its proper divisors (76010373168).

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

32504431440 is a wasteful number, since it uses less digits than its factorization.

32504431440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10418116 (or 10418110 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 30.

Adding to 32504431440 its reverse (4413440523), we get a palindrome (36917871963).

The spelling of 32504431440 in words is "thirty-two billion, five hundred four million, four hundred thirty-one thousand, four hundred forty".