4085550 has 72 divisors (see below), whose sum is σ = 12554256. Its totient is φ = 933120.

The previous prime is 4085539. The next prime is 4085561. The reversal of 4085550 is 555804.

It is an interprime number because it is at equal distance from previous prime (4085539) and next prime (4085561).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 2502 + ... + 3798.

Almost surely, 2^4085550 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4085550, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6277128).

4085550 is an abundant number, since it is smaller than the sum of its proper divisors (8468706).

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

4085550 is a wasteful number, since it uses less digits than its factorization.

4085550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1322 (or 1314 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 27.

The square root of 4085550 is about 2021.2743505027. The cubic root of 4085550 is about 159.8638164122.

The spelling of 4085550 in words is "four million, eighty-five thousand, five hundred fifty".