82451908 has 72 divisors (see below), whose sum is σ = 185008320. Its totient is φ = 31792320.

The previous prime is 82451903. The next prime is 82451933. The reversal of 82451908 is 80915428.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82451903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 359938 + ... + 360166.

It is an arithmetic number, because the mean of its divisors is an integer number (2569560).

Almost surely, 2^82451908 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 82451908, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (92504160).

82451908 is an abundant number, since it is smaller than the sum of its proper divisors (102556412).

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

82451908 is a wasteful number, since it uses less digits than its factorization.

82451908 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 425 (or 416 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 37.

The square root of 82451908 is about 9080.3032988992. The cubic root of 82451908 is about 435.2447787803.

It can be divided in two parts, 8245 and 1908, that added together give a triangular number (10153 = T₁₄₂).

The spelling of 82451908 in words is "eighty-two million, four hundred fifty-one thousand, nine hundred eight".