2560406 has 8 divisors (see below), whose sum is σ = 4007664. Its totient is φ = 1224520.

The previous prime is 2560399. The next prime is 2560417. The reversal of 2560406 is 6040652.

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

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Curzon number.

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, 27785 + ... + 27876.

It is an arithmetic number, because the mean of its divisors is an integer number (500958).

2^2560406 is an apocalyptic number.

2560406 is a deficient number, since it is larger than the sum of its proper divisors (1447258).

2560406 is a wasteful number, since it uses less digits than its factorization.

2560406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55686.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 2560406 is about 1600.1268699700. The cubic root of 2560406 is about 136.8053071251.

The spelling of 2560406 in words is "two million, five hundred sixty thousand, four hundred six".