1244040210 has 96 divisors (see below), whose sum is σ = 3713149440. Its totient is φ = 283077504.

The previous prime is 1244040209. The next prime is 1244040247. The reversal of 1244040210 is 120404421.

1244040210 is a `hidden beast` number, since 12 + 440 + 4 + 0 + 210 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

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 47 ways as a sum of consecutive naturals, for example, 139959 + ... + 148581.

It is an arithmetic number, because the mean of its divisors is an integer number (38678640).

Almost surely, 2^1244040210 is an apocalyptic number.

1244040210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1244040210, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1856574720).

1244040210 is an abundant number, since it is smaller than the sum of its proper divisors (2469109230).

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

1244040210 is a wasteful number, since it uses less digits than its factorization.

1244040210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8872 (or 8869 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

The square root of 1244040210 is about 35270.9541974696. The cubic root of 1244040210 is about 1075.5026198383.

Adding to 1244040210 its reverse (120404421), we get a palindrome (1364444631).

It can be divided in two parts, 12440 and 40210, that added together give a triangular number (52650 = T₃₂₄).

The spelling of 1244040210 in words is "one billion, two hundred forty-four million, forty thousand, two hundred ten".