2567438 has 4 divisors (see below), whose sum is σ = 3851160. Its totient is φ = 1283718.

The previous prime is 2567437. The next prime is 2567443. The reversal of 2567438 is 8347652.

It is a happy number.

2567438 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is an alternating number because its digits alternate between even and odd.

It is a junction number, because it is equal to n+sod(n) for n = 2567398 and 2567407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2567437) by changing a digit.

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 as a sum of consecutive naturals, namely, 641858 + ... + 641861.

It is an arithmetic number, because the mean of its divisors is an integer number (962790).

2^2567438 is an apocalyptic number.

2567438 is a deficient number, since it is larger than the sum of its proper divisors (1283722).

2567438 is a wasteful number, since it uses less digits than its factorization.

2567438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1283721.

The product of its digits is 40320, while the sum is 35.

The square root of 2567438 is about 1602.3226890985. The cubic root of 2567438 is about 136.9304351394.

The spelling of 2567438 in words is "two million, five hundred sixty-seven thousand, four hundred thirty-eight".