2556346 has 8 divisors (see below), whose sum is σ = 4129524. Its totient is φ = 1179840.

The previous prime is 2556331. The next prime is 2556373. The reversal of 2556346 is 6436552.

It can be written as a sum of positive squares in 2 ways, for example, as 2544025 + 12321 = 1595^2 + 111^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49135 + ... + 49186.

2^2556346 is an apocalyptic number.

2556346 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

2556346 is a deficient number, since it is larger than the sum of its proper divisors (1573178).

2556346 is a wasteful number, since it uses less digits than its factorization.

2556346 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98336.

The product of its digits is 21600, while the sum is 31.

The square root of 2556346 is about 1598.8577172469. The cubic root of 2556346 is about 136.7329587834.

The spelling of 2556346 in words is "two million, five hundred fifty-six thousand, three hundred forty-six".