82411290 has 128 divisors (see below), whose sum is σ = 241678080. Its totient is φ = 19858176.

The previous prime is 82411283. The next prime is 82411309. The reversal of 82411290 is 9211428.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 185809 + ... + 186251.

It is an arithmetic number, because the mean of its divisors is an integer number (1888110).

Almost surely, 2^82411290 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 82411290, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (120839040).

82411290 is an abundant number, since it is smaller than the sum of its proper divisors (159266790).

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

82411290 is a wasteful number, since it uses less digits than its factorization.

82411290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 525 (or 519 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 27.

The square root of 82411290 is about 9078.0664240795. The cubic root of 82411290 is about 435.1732959945.

The spelling of 82411290 in words is "eighty-two million, four hundred eleven thousand, two hundred ninety".