3857290 has 32 divisors (see below), whose sum is σ = 7361280. Its totient is φ = 1452864.

The previous prime is 3857267. The next prime is 3857297. The reversal of 3857290 is 927583.

It is a super-2 number, since 2×3857290² = 29757372288200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3857297) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13489 + ... + 13771.

It is an arithmetic number, because the mean of its divisors is an integer number (230040).

Almost surely, 2^3857290 is an apocalyptic number.

3857290 is a deficient number, since it is larger than the sum of its proper divisors (3503990).

3857290 is a wasteful number, since it uses less digits than its factorization.

3857290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 366.

The product of its (nonzero) digits is 15120, while the sum is 34.

The square root of 3857290 is about 1963.9984725045. The cubic root of 3857290 is about 156.8293817719.

The spelling of 3857290 in words is "three million, eight hundred fifty-seven thousand, two hundred ninety".