32520313404 has 144 divisors (see below), whose sum is σ = 90905794560. Its totient is φ = 10049529600.

The previous prime is 32520313381. The next prime is 32520313429. The reversal of 32520313404 is 40431302523.

32520313404 is a `hidden beast` number, since 3 + 2 + 520 + 3 + 134 + 0 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2083429 + ... + 2098979.

It is an arithmetic number, because the mean of its divisors is an integer number (631290240).

Almost surely, 2^32520313404 is an apocalyptic number.

32520313404 is a gapful number since it is divisible by the number (34) 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 32520313404, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45452897280).

32520313404 is an abundant number, since it is smaller than the sum of its proper divisors (58385481156).

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

32520313404 is a wasteful number, since it uses less digits than its factorization.

32520313404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15665 (or 15640 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 27.

Adding to 32520313404 its reverse (40431302523), we get a palindrome (72951615927).

The spelling of 32520313404 in words is "thirty-two billion, five hundred twenty million, three hundred thirteen thousand, four hundred four".