2630406 has 8 divisors (see below), whose sum is σ = 5260824. Its totient is φ = 876800.

The previous prime is 2630399. The next prime is 2630423. The reversal of 2630406 is 6040362.

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

2630406 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 219195 + ... + 219206.

It is an arithmetic number, because the mean of its divisors is an integer number (657603).

2^2630406 is an apocalyptic number.

2630406 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.

2630406 is a wasteful number, since it uses less digits than its factorization.

2630406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 438406.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 2630406 is about 1621.8526443546. The cubic root of 2630406 is about 138.0408406742.

Adding to 2630406 its reverse (6040362), we get a palindrome (8670768).

The spelling of 2630406 in words is "two million, six hundred thirty thousand, four hundred six".