1208547648 has 448 divisors, whose sum is σ = 4588093440. Its totient is φ = 302745600.

The previous prime is 1208547647. The next prime is 1208547661. The reversal of 1208547648 is 8467458021.

It is a tau number, because it is divible by the number of its divisors (448).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1208547647) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4124590 + ... + 4124882.

It is an arithmetic number, because the mean of its divisors is an integer number (10241280).

Almost surely, 2^1208547648 is an apocalyptic number.

1208547648 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1208547648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2294046720).

1208547648 is an abundant number, since it is smaller than the sum of its proper divisors (3379545792).

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

1208547648 is a wasteful number, since it uses less digits than its factorization.

1208547648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 363 (or 347 counting only the distinct ones).

The product of its (nonzero) digits is 430080, while the sum is 45.

The square root of 1208547648 is about 34764.1719015425. The cubic root of 1208547648 is about 1065.1757218479.

The spelling of 1208547648 in words is "one billion, two hundred eight million, five hundred forty-seven thousand, six hundred forty-eight".