2509039242 has 12 divisors (see below), whose sum is σ = 5436251730. Its totient is φ = 836346408.

The previous prime is 2509039171. The next prime is 2509039259. The reversal of 2509039242 is 2429309052.

It can be written as a sum of positive squares in only one way, i.e., 1859248161 + 649791081 = 43119^2 + 25491^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2509039197 and 2509039206.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 69695517 + ... + 69695552.

Almost surely, 2^2509039242 is an apocalyptic number.

2509039242 is an abundant number, since it is smaller than the sum of its proper divisors (2927212488).

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

2509039242 is a wasteful number, since it uses less digits than its factorization.

2509039242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139391077 (or 139391074 counting only the distinct ones).

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

The square root of 2509039242 is about 50090.3108594866. The cubic root of 2509039242 is about 1358.8425926355.

The spelling of 2509039242 in words is "two billion, five hundred nine million, thirty-nine thousand, two hundred forty-two".