33227927728 has 40 divisors (see below), whose sum is σ = 68523114240. Its totient is φ = 15554780160.

The previous prime is 33227927723. The next prime is 33227927729. The reversal of 33227927728 is 82772972233.

It is a happy number.

It is a super-2 number, since 2×33227927728² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (33227927723) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 267843 + ... + 371746.

It is an arithmetic number, because the mean of its divisors is an integer number (1713077856).

Almost surely, 2^33227927728 is an apocalyptic number.

It is an amenable number.

33227927728 is an abundant number, since it is smaller than the sum of its proper divisors (35295186512).

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

33227927728 is a wasteful number, since it uses less digits than its factorization.

33227927728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 639805 (or 639799 counting only the distinct ones).

The product of its digits is 3556224, while the sum is 52.

The spelling of 33227927728 in words is "thirty-three billion, two hundred twenty-seven million, nine hundred twenty-seven thousand, seven hundred twenty-eight".