85408438 has 8 divisors (see below), whose sum is σ = 128297520. Its totient is φ = 42642600.

The previous prime is 85408429. The next prime is 85408457. The reversal of 85408438 is 83480458.

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

It is a self number, because there is not a number n which added to its sum of digits gives 85408438.

It is a congruent number.

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, 29058 + ... + 31861.

It is an arithmetic number, because the mean of its divisors is an integer number (16037190).

Almost surely, 2^85408438 is an apocalyptic number.

85408438 is a deficient number, since it is larger than the sum of its proper divisors (42889082).

85408438 is a wasteful number, since it uses less digits than its factorization.

85408438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61622.

The product of its (nonzero) digits is 122880, while the sum is 40.

The square root of 85408438 is about 9241.6685722871. The cubic root of 85408438 is about 440.3860901788.

The spelling of 85408438 in words is "eighty-five million, four hundred eight thousand, four hundred thirty-eight".