2549830 has 32 divisors (see below), whose sum is σ = 4968864. Its totient is φ = 938496.

The previous prime is 2549821. The next prime is 2549863. The reversal of 2549830 is 389452.

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

It is a plaindrome in base 15.

It is a junction number, because it is equal to n+sod(n) for n = 2549792 and 2549801.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8869 + ... + 9151.

It is an arithmetic number, because the mean of its divisors is an integer number (155277).

2^2549830 is an apocalyptic number.

2549830 is a deficient number, since it is larger than the sum of its proper divisors (2419034).

2549830 is a wasteful number, since it uses less digits than its factorization.

2549830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 360.

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 2549830 is about 1596.8187123152. The cubic root of 2549830 is about 136.6166847435.

The spelling of 2549830 in words is "two million, five hundred forty-nine thousand, eight hundred thirty".