32156480 has 42 divisors (see below), whose sum is σ = 76814934. Its totient is φ = 12822016.

The previous prime is 32156473. The next prime is 32156483. The reversal of 32156480 is 8465123.

It can be written as a sum of positive squares in 3 ways, for example, as 1597696 + 30558784 = 1264^2 + 5528^2 .

It is a super-3 number, since 3×32156480³ (a number of 23 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32156483) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 101282 + ... + 101598.

It is an arithmetic number, because the mean of its divisors is an integer number (1828927).

Almost surely, 2^32156480 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 32156480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38407467).

32156480 is an abundant number, since it is smaller than the sum of its proper divisors (44658454).

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

32156480 is an frugal number, since it uses more digits than its factorization.

32156480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 651 (or 324 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 32156480 is about 5670.6683909395. The cubic root of 32156480 is about 317.9968619075.

The spelling of 32156480 in words is "thirty-two million, one hundred fifty-six thousand, four hundred eighty".