81033468 has 12 divisors (see below), whose sum is σ = 189078120. Its totient is φ = 27011152.

The previous prime is 81033467. The next prime is 81033487. The reversal of 81033468 is 86433018.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×81033468² = 13132845872214048, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (81033467) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3376383 + ... + 3376406.

It is an arithmetic number, because the mean of its divisors is an integer number (15756510).

Almost surely, 2^81033468 is an apocalyptic number.

It is an amenable number.

81033468 is an abundant number, since it is smaller than the sum of its proper divisors (108044652).

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

81033468 is a wasteful number, since it uses less digits than its factorization.

81033468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6752796 (or 6752794 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 33.

The square root of 81033468 is about 9001.8591413108. The cubic root of 81033468 is about 432.7344545022.

The spelling of 81033468 in words is "eighty-one million, thirty-three thousand, four hundred sixty-eight".