85074390 has 48 divisors (see below), whose sum is σ = 221652288. Its totient is φ = 22639488.

The previous prime is 85074383. The next prime is 85074403. The reversal of 85074390 is 9347058.

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 23 ways as a sum of consecutive naturals, for example, 76579 + ... + 77681.

It is an arithmetic number, because the mean of its divisors is an integer number (4617756).

Almost surely, 2^85074390 is an apocalyptic number.

85074390 is an abundant number, since it is smaller than the sum of its proper divisors (136577898).

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

85074390 is a wasteful number, since it uses less digits than its factorization.

85074390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1973 (or 1970 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 85074390 is about 9223.5779391731. The cubic root of 85074390 is about 439.8111965445.

The spelling of 85074390 in words is "eighty-five million, seventy-four thousand, three hundred ninety".