32909033472 has 320 divisors, whose sum is σ = 104018640000. Its totient is φ = 9248440320.

The previous prime is 32909033431. The next prime is 32909033477. The reversal of 32909033472 is 27433090923.

It is a happy number.

It is a super-2 number, since 2×32909033472² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (32909033477) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 539492322 + ... + 539492382.

It is an arithmetic number, because the mean of its divisors is an integer number (325058250).

Almost surely, 2^32909033472 is an apocalyptic number.

32909033472 is a gapful number since it is divisible by the number (32) 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 32909033472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (52009320000).

32909033472 is an abundant number, since it is smaller than the sum of its proper divisors (71109606528).

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

32909033472 is an frugal number, since it uses more digits than its factorization.

32909033472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123 (or 73 counting only the distinct ones).

The product of its (nonzero) digits is 244944, while the sum is 42.

The spelling of 32909033472 in words is "thirty-two billion, nine hundred nine million, thirty-three thousand, four hundred seventy-two".