82390308 has 192 divisors, whose sum is σ = 272455680. Its totient is φ = 18714240.

The previous prime is 82390283. The next prime is 82390309. The reversal of 82390308 is 80309328.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (82390309) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4336323 + ... + 4336341.

It is an arithmetic number, because the mean of its divisors is an integer number (1419040).

Almost surely, 2^82390308 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 82390308, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (136227840).

82390308 is an abundant number, since it is smaller than the sum of its proper divisors (190065372).

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

82390308 is a wasteful number, since it uses less digits than its factorization.

82390308 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95 (or 55 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 33.

The square root of 82390308 is about 9076.9107079446. The cubic root of 82390308 is about 435.1363610021.

The spelling of 82390308 in words is "eighty-two million, three hundred ninety thousand, three hundred eight".