1217042632 has 32 divisors (see below), whose sum is σ = 2466233280. Its totient is φ = 559713600.

The previous prime is 1217042621. The next prime is 1217042633. The reversal of 1217042632 is 2362407121.

It is a self number, because there is not a number n which added to its sum of digits gives 1217042632.

It is not an unprimeable number, because it can be changed into a prime (1217042633) 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, 8757 + ... + 50107.

It is an arithmetic number, because the mean of its divisors is an integer number (77069790).

Almost surely, 2^1217042632 is an apocalyptic number.

It is an amenable number.

1217042632 is an abundant number, since it is smaller than the sum of its proper divisors (1249190648).

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

1217042632 is a wasteful number, since it uses less digits than its factorization.

1217042632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41653 (or 41649 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 1217042632 is about 34886.1381067036. The cubic root of 1217042632 is about 1067.6656338483.

Adding to 1217042632 its reverse (2362407121), we get a palindrome (3579449753).

The spelling of 1217042632 in words is "one billion, two hundred seventeen million, forty-two thousand, six hundred thirty-two".