85230390 has 128 divisors (see below), whose sum is σ = 252564480. Its totient is φ = 17971200.

The previous prime is 85230361. The next prime is 85230419. The reversal of 85230390 is 9303258.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (85230361) and next prime (85230419).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 163330 + ... + 163850.

It is an arithmetic number, because the mean of its divisors is an integer number (1973160).

Almost surely, 2^85230390 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 85230390, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (126282240).

85230390 is an abundant number, since it is smaller than the sum of its proper divisors (167334090).

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

85230390 is a wasteful number, since it uses less digits than its factorization.

85230390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 598.

The product of its (nonzero) digits is 6480, while the sum is 30.

The square root of 85230390 is about 9232.0306541952. The cubic root of 85230390 is about 440.0798580948.

The spelling of 85230390 in words is "eighty-five million, two hundred thirty thousand, three hundred ninety".