85409426 has 8 divisors (see below), whose sum is σ = 128262204. Its totient is φ = 42655360.

The previous prime is 85409417. The next prime is 85409449. The reversal of 85409426 is 62490458.

It can be written as a sum of positive squares in 2 ways, for example, as 64240225 + 21169201 = 8015^2 + 4601^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 85409426.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22475 + ... + 25998.

Almost surely, 2^85409426 is an apocalyptic number.

85409426 is a deficient number, since it is larger than the sum of its proper divisors (42852778).

85409426 is a wasteful number, since it uses less digits than its factorization.

85409426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49356.

The product of its (nonzero) digits is 69120, while the sum is 38.

The square root of 85409426 is about 9241.7220256833. The cubic root of 85409426 is about 440.3877882927.

The spelling of 85409426 in words is "eighty-five million, four hundred nine thousand, four hundred twenty-six".