1239254868 has 24 divisors (see below), whose sum is σ = 2924087040. Its totient is φ = 408443200.

The previous prime is 1239254857. The next prime is 1239254869. The reversal of 1239254868 is 8684529321.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1239254869) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 579108 + ... + 581243.

It is an arithmetic number, because the mean of its divisors is an integer number (121836960).

Almost surely, 2^1239254868 is an apocalyptic number.

It is an amenable number.

1239254868 is an abundant number, since it is smaller than the sum of its proper divisors (1684832172).

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

1239254868 is a wasteful number, since it uses less digits than its factorization.

1239254868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1160447 (or 1160445 counting only the distinct ones).

The product of its digits is 829440, while the sum is 48.

The square root of 1239254868 is about 35203.0519699642. The cubic root of 1239254868 is about 1074.1218335341.

The spelling of 1239254868 in words is "one billion, two hundred thirty-nine million, two hundred fifty-four thousand, eight hundred sixty-eight".