2539434540 has 48 divisors (see below), whose sum is σ = 7115256288. Its totient is φ = 676721664.

The previous prime is 2539434529. The next prime is 2539434559. The reversal of 2539434540 is 454349352.

2539434540 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

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, 79554 + ... + 106806.

It is an arithmetic number, because the mean of its divisors is an integer number (148234506).

Almost surely, 2^2539434540 is an apocalyptic number.

2539434540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2539434540 is an abundant number, since it is smaller than the sum of its proper divisors (4575821748).

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

2539434540 is a wasteful number, since it uses less digits than its factorization.

2539434540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28818 (or 28816 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 39.

The square root of 2539434540 is about 50392.8024622565. The cubic root of 2539434540 is about 1364.3077330740.

The spelling of 2539434540 in words is "two billion, five hundred thirty-nine million, four hundred thirty-four thousand, five hundred forty".