2509389 has 12 divisors (see below), whose sum is σ = 3661216. Its totient is φ = 1656072.

The previous prime is 2509379. The next prime is 2509411. The reversal of 2509389 is 9839052.

It is not a de Polignac number, because 2509389 - 2¹³ = 2501197 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2509379) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 427 + ... + 2280.

2^2509389 is an apocalyptic number.

It is an amenable number.

2509389 is a deficient number, since it is larger than the sum of its proper divisors (1151827).

2509389 is a wasteful number, since it uses less digits than its factorization.

2509389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2816 (or 2813 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 36.

The square root of 2509389 is about 1584.1051101489. The cubic root of 2509389 is about 135.8905730214.

The spelling of 2509389 in words is "two million, five hundred nine thousand, three hundred eighty-nine".