2856466 has 4 divisors (see below), whose sum is σ = 4284702. Its totient is φ = 1428232.

The previous prime is 2856461. The next prime is 2856473. The reversal of 2856466 is 6646582.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 2019241 + 837225 = 1421^2 + 915^2 .

It is not an unprimeable number, because it can be changed into a prime (2856461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 714115 + ... + 714118.

2^2856466 is an apocalyptic number.

2856466 is a deficient number, since it is larger than the sum of its proper divisors (1428236).

2856466 is a wasteful number, since it uses less digits than its factorization.

2856466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1428235.

The product of its digits is 69120, while the sum is 37.

The square root of 2856466 is about 1690.1082805548. The cubic root of 2856466 is about 141.8871350731.

It can be divided in two parts, 2856 and 466, that multiplied together give a triangular number (1330896 = T₁₆₃₁).

The spelling of 2856466 in words is "two million, eight hundred fifty-six thousand, four hundred sixty-six".