85442344 has 24 divisors (see below), whose sum is σ = 173478510. Its totient is φ = 39434304.

The previous prime is 85442303. The next prime is 85442363. The reversal of 85442344 is 44324458.

It can be written as a sum of positive squares in 3 ways, for example, as 69522244 + 15920100 = 8338^2 + 3990^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 30247 + ... + 32950.

Almost surely, 2^85442344 is an apocalyptic number.

It is an amenable number.

85442344 is an abundant number, since it is smaller than the sum of its proper divisors (88036166).

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

85442344 is a wasteful number, since it uses less digits than its factorization.

85442344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63229 (or 63212 counting only the distinct ones).

The product of its digits is 61440, while the sum is 34.

The square root of 85442344 is about 9243.5027992639. The cubic root of 85442344 is about 440.4443582518. Note that the first 3 decimals are identical.

The spelling of 85442344 in words is "eighty-five million, four hundred forty-two thousand, three hundred forty-four".