1246216240 has 40 divisors (see below), whose sum is σ = 2975769360. Its totient is φ = 485012736.

The previous prime is 1246216219. The next prime is 1246216249. The reversal of 1246216240 is 426126421.

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 1246216199 and 1246216208.

It is not an unprimeable number, because it can be changed into a prime (1246216249) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 207550 + ... + 213469.

It is an arithmetic number, because the mean of its divisors is an integer number (74394234).

Almost surely, 2^1246216240 is an apocalyptic number.

1246216240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1246216240 is an abundant number, since it is smaller than the sum of its proper divisors (1729553120).

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

1246216240 is a wasteful number, since it uses less digits than its factorization.

1246216240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 421069 (or 421063 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 28.

The square root of 1246216240 is about 35301.7880566976. The cubic root of 1246216240 is about 1076.1293312939.

The spelling of 1246216240 in words is "one billion, two hundred forty-six million, two hundred sixteen thousand, two hundred forty".