1548220868 has 6 divisors (see below), whose sum is σ = 2709386526. Its totient is φ = 774110432.

The previous prime is 1548220867. The next prime is 1548220939. The reversal of 1548220868 is 8680228451.

It can be written as a sum of positive squares in only one way, i.e., 1155864004 + 392356864 = 33998^2 + 19808^2 .

It is a super-2 number, since 2×1548220868² = 4793975712221346848, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1548220867) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 193527605 + ... + 193527612.

It is an arithmetic number, because the mean of its divisors is an integer number (451564421).

Almost surely, 2^1548220868 is an apocalyptic number.

It is an amenable number.

1548220868 is a deficient number, since it is larger than the sum of its proper divisors (1161165658).

1548220868 is a wasteful number, since it uses less digits than its factorization.

1548220868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 387055221 (or 387055219 counting only the distinct ones).

The product of its (nonzero) digits is 245760, while the sum is 44.

The square root of 1548220868 is about 39347.4378835522. The cubic root of 1548220868 is about 1156.8515663997.

The spelling of 1548220868 in words is "one billion, five hundred forty-eight million, two hundred twenty thousand, eight hundred sixty-eight".