2590406 has 32 divisors (see below), whose sum is σ = 4908288. Its totient is φ = 997920.

The previous prime is 2590397. The next prime is 2590411. The reversal of 2590406 is 6040952.

2590406 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7661 + ... + 7991.

It is an arithmetic number, because the mean of its divisors is an integer number (153384).

2^2590406 is an apocalyptic number.

2590406 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

2590406 is a deficient number, since it is larger than the sum of its proper divisors (2317882).

2590406 is a wasteful number, since it uses less digits than its factorization.

2590406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 396.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 2590406 is about 1609.4738270627. The cubic root of 2590406 is about 137.3375447751.

The spelling of 2590406 in words is "two million, five hundred ninety thousand, four hundred six".