2850309 has 40 divisors (see below), whose sum is σ = 5320128. Its totient is φ = 1477440.

The previous prime is 2850301. The next prime is 2850311. The reversal of 2850309 is 9030582.

It is not a de Polignac number, because 2850309 - 2³ = 2850301 is a prime.

It is a super-2 number, since 2×2850309² = 16248522790962, which contains 22 as substring.

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

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2850301) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 6009 + ... + 6465.

2^2850309 is an apocalyptic number.

It is an amenable number.

2850309 is a deficient number, since it is larger than the sum of its proper divisors (2469819).

2850309 is a wasteful number, since it uses less digits than its factorization.

2850309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 487 (or 478 counting only the distinct ones).

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

The square root of 2850309 is about 1688.2858170345. The cubic root of 2850309 is about 141.7851176953.

The spelling of 2850309 in words is "two million, eight hundred fifty thousand, three hundred nine".