2549430 has 48 divisors (see below), whose sum is σ = 7141680. Its totient is φ = 627264.

The previous prime is 2549429. The next prime is 2549431. The reversal of 2549430 is 349452.

It is an interprime number because it is at equal distance from previous prime (2549429) and next prime (2549431).

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 = 2549394 and 2549403.

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

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 81 + ... + 2259.

It is an arithmetic number, because the mean of its divisors is an integer number (148785).

2^2549430 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2549430, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3570840).

2549430 is an abundant number, since it is smaller than the sum of its proper divisors (4592250).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2549430 is a wasteful number, since it uses less digits than its factorization.

2549430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2205 (or 2202 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 2549430 is about 1596.6934583695. The cubic root of 2549430 is about 136.6095405375.

It can be divided in two parts, 25 and 49430, that added together give a triangular number (49455 = T₃₁₄).

The spelling of 2549430 in words is "two million, five hundred forty-nine thousand, four hundred thirty".