2561046 has 8 divisors (see below), whose sum is σ = 5122104. Its totient is φ = 853680.

The previous prime is 2561023. The next prime is 2561051. The reversal of 2561046 is 6401652.

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

2561046 is an admirable number.

It is a super-2 number, since 2×2561046² = 13117913228232, which contains 22 as substring.

It is a congruent number.

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, 213415 + ... + 213426.

It is an arithmetic number, because the mean of its divisors is an integer number (640263).

2^2561046 is an apocalyptic number.

2561046 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

2561046 is a wasteful number, since it uses less digits than its factorization.

2561046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 426846.

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 2561046 is about 1600.3268416170. The cubic root of 2561046 is about 136.8167048100.

Adding to 2561046 its reverse (6401652), we get a palindrome (8962698).

Subtracting 2561046 from its reverse (6401652), we obtain a triangular number (3840606 = T₂₇₇₁).

The spelling of 2561046 in words is "two million, five hundred sixty-one thousand, forty-six".