81022048 has 24 divisors (see below), whose sum is σ = 160538112. Its totient is φ = 40250496.

The previous prime is 81022037. The next prime is 81022057. The reversal of 81022048 is 84022018.

It is a super-2 number, since 2×81022048² = 13129144524228608, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3040 + ... + 13087.

It is an arithmetic number, because the mean of its divisors is an integer number (6689088).

Almost surely, 2^81022048 is an apocalyptic number.

It is an amenable number.

81022048 is a deficient number, since it is larger than the sum of its proper divisors (79516064).

81022048 is a wasteful number, since it uses less digits than its factorization.

81022048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16294 (or 16286 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 25.

The square root of 81022048 is about 9001.2248055473. The cubic root of 81022048 is about 432.7141252080.

The spelling of 81022048 in words is "eighty-one million, twenty-two thousand, forty-eight".