2539449 has 24 divisors (see below), whose sum is σ = 4054752. Its totient is φ = 1518720.

The previous prime is 2539441. The next prime is 2539463. The reversal of 2539449 is 9449352.

It is not a de Polignac number, because 2539449 - 2³ = 2539441 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2539441) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11074 + ... + 11300.

It is an arithmetic number, because the mean of its divisors is an integer number (168948).

2^2539449 is an apocalyptic number.

It is an amenable number.

2539449 is a deficient number, since it is larger than the sum of its proper divisors (1515303).

2539449 is a wasteful number, since it uses less digits than its factorization.

2539449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 357 (or 354 counting only the distinct ones).

The product of its digits is 38880, while the sum is 36.

The square root of 2539449 is about 1593.5648716008. The cubic root of 2539449 is about 136.4310322608.

Subtracting 2539449 from its reverse (9449352), we obtain a triangular number (6909903 = T₃₇₁₇).

The spelling of 2539449 in words is "two million, five hundred thirty-nine thousand, four hundred forty-nine".