1208601240 has 512 divisors, whose sum is σ = 4857200640. Its totient is φ = 235107840.

The previous prime is 1208601209. The next prime is 1208601269. The reversal of 1208601240 is 421068021.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 1208601240.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 25714897 + ... + 25714943.

It is an arithmetic number, because the mean of its divisors is an integer number (9486720).

Almost surely, 2^1208601240 is an apocalyptic number.

1208601240 is a gapful number since it is divisible by the number (10) 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 1208601240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2428600320).

1208601240 is an abundant number, since it is smaller than the sum of its proper divisors (3648599400).

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

1208601240 is a wasteful number, since it uses less digits than its factorization.

1208601240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124 (or 98 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 24.

The square root of 1208601240 is about 34764.9426865629. The cubic root of 1208601240 is about 1065.1914663805.

Adding to 1208601240 its reverse (421068021), we get a palindrome (1629669261).

The spelling of 1208601240 in words is "one billion, two hundred eight million, six hundred one thousand, two hundred forty".