2506426 has 8 divisors (see below), whose sum is σ = 4048884. Its totient is φ = 1156800.

The previous prime is 2506421. The next prime is 2506447. The reversal of 2506426 is 6246052.

It can be written as a sum of positive squares in 2 ways, for example, as 1782225 + 724201 = 1335^2 + 851^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 2506426.

It is not an unprimeable number, because it can be changed into a prime (2506421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48175 + ... + 48226.

2^2506426 is an apocalyptic number.

2506426 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

2506426 is a deficient number, since it is larger than the sum of its proper divisors (1542458).

2506426 is a wasteful number, since it uses less digits than its factorization.

2506426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96416.

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 2506426 is about 1583.1696055698. The cubic root of 2506426 is about 135.8370669889.

The spelling of 2506426 in words is "two million, five hundred six thousand, four hundred twenty-six".