32471040 has 192 divisors, whose sum is σ = 119508480. Its totient is φ = 7372800.

The previous prime is 32470973. The next prime is 32471051. The reversal of 32471040 is 4017423.

It is a tau number, because it is divible by the number of its divisors (192).

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 32470998 and 32471016.

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, 214965 + ... + 215115.

It is an arithmetic number, because the mean of its divisors is an integer number (622440).

Almost surely, 2^32471040 is an apocalyptic number.

32471040 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 32471040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59754240).

32471040 is an abundant number, since it is smaller than the sum of its proper divisors (87037440).

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

32471040 is a wasteful number, since it uses less digits than its factorization.

32471040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188 (or 168 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 21.

The square root of 32471040 is about 5698.3365993946. The cubic root of 32471040 is about 319.0303984029.

Adding to 32471040 its reverse (4017423), we get a palindrome (36488463).

The spelling of 32471040 in words is "thirty-two million, four hundred seventy-one thousand, forty".