82280544 has 48 divisors (see below), whose sum is σ = 228696048. Its totient is φ = 25812992.

The previous prime is 82280537. The next prime is 82280567. The reversal of 82280544 is 44508228.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23577 + ... + 26840.

It is an arithmetic number, because the mean of its divisors is an integer number (4764501).

Almost surely, 2^82280544 is an apocalyptic number.

It is an amenable number.

82280544 is an abundant number, since it is smaller than the sum of its proper divisors (146415504).

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

82280544 is a wasteful number, since it uses less digits than its factorization.

82280544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50447 (or 50439 counting only the distinct ones).

The product of its (nonzero) digits is 20480, while the sum is 33.

The square root of 82280544 is about 9070.8623625320. The cubic root of 82280544 is about 434.9430391792.

The spelling of 82280544 in words is "eighty-two million, two hundred eighty thousand, five hundred forty-four".