85223340 has 120 divisors (see below), whose sum is σ = 276135552. Its totient is φ = 21980160.

The previous prime is 85223293. The next prime is 85223387. The reversal of 85223340 is 4332258.

It is an interprime number because it is at equal distance from previous prime (85223293) and next prime (85223387).

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

It is an unprimeable number.

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 39 ways as a sum of consecutive naturals, for example, 49372 + ... + 51068.

Almost surely, 2^85223340 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 85223340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (138067776).

85223340 is an abundant number, since it is smaller than the sum of its proper divisors (190912212).

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

85223340 is a wasteful number, since it uses less digits than its factorization.

85223340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1749 (or 1738 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The square root of 85223340 is about 9231.6488234768. The cubic root of 85223340 is about 440.0677237354.

Adding to 85223340 its reverse (4332258), we get a palindrome (89555598).

The spelling of 85223340 in words is "eighty-five million, two hundred twenty-three thousand, three hundred forty".