1210243664 has 40 divisors (see below), whose sum is σ = 2686607808. Its totient is φ = 517363200.

The previous prime is 1210243663. The next prime is 1210243687. The reversal of 1210243664 is 4663420121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1210243663) 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, 31439 + ... + 58385.

Almost surely, 2^1210243664 is an apocalyptic number.

1210243664 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1210243664 is an abundant number, since it is smaller than the sum of its proper divisors (1476364144).

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

1210243664 is a wasteful number, since it uses less digits than its factorization.

1210243664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27363 (or 27357 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 29.

The square root of 1210243664 is about 34788.5565092891. The cubic root of 1210243664 is about 1065.6737605893.

Adding to 1210243664 its reverse (4663420121), we get a palindrome (5873663785).

The spelling of 1210243664 in words is "one billion, two hundred ten million, two hundred forty-three thousand, six hundred sixty-four".