2549438 has 4 divisors (see below), whose sum is σ = 3824160. Its totient is φ = 1274718.

The previous prime is 2549431. The next prime is 2549447. The reversal of 2549438 is 8349452.

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 = 2549398 and 2549407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2549431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 637358 + ... + 637361.

It is an arithmetic number, because the mean of its divisors is an integer number (956040).

2^2549438 is an apocalyptic number.

2549438 is a deficient number, since it is larger than the sum of its proper divisors (1274722).

2549438 is a wasteful number, since it uses less digits than its factorization.

2549438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1274721.

The product of its digits is 34560, while the sum is 35.

The square root of 2549438 is about 1596.6959635447. The cubic root of 2549438 is about 136.6096834290.

The spelling of 2549438 in words is "two million, five hundred forty-nine thousand, four hundred thirty-eight".