33808080 has 40 divisors (see below), whose sum is σ = 104805792. Its totient is φ = 9015424.

The previous prime is 33808057. The next prime is 33808081. The reversal of 33808080 is 8080833.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×33808080² = 2285972546572800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33808081) 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, 70194 + ... + 70673.

Almost surely, 2^33808080 is an apocalyptic number.

33808080 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

33808080 is an abundant number, since it is smaller than the sum of its proper divisors (70997712).

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

33808080 is a wasteful number, since it uses less digits than its factorization.

33808080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140883 (or 140877 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 30.

The square root of 33808080 is about 5814.4716011001. The cubic root of 33808080 is about 323.3504744045.

It can be divided in two parts, 3 and 3808080, that added together give a palindrome (3808083).

The spelling of 33808080 in words is "thirty-three million, eight hundred eight thousand, eighty".