2850390 has 112 divisors (see below), whose sum is σ = 8499168. Its totient is φ = 684288.

The previous prime is 2850389. The next prime is 2850401. The reversal of 2850390 is 930582.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 123919 + ... + 123941.

2^2850390 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2850390, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4249584).

2850390 is an abundant number, since it is smaller than the sum of its proper divisors (5648778).

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

2850390 is a wasteful number, since it uses less digits than its factorization.

2850390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65 (or 50 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 2850390 is about 1688.3098056933. The cubic root of 2850390 is about 141.7864607644.

2850390 divided by its sum of digits (27) gives a triangular number (105570 = T₄₅₉).

It can be divided in two parts, 2850 and 390, that added together give a triangular number (3240 = T₈₀).

The spelling of 2850390 in words is "two million, eight hundred fifty thousand, three hundred ninety".