1242217232 has 10 divisors (see below), whose sum is σ = 2406795918. Its totient is φ = 621108608.

The previous prime is 1242217231. The next prime is 1242217241. The reversal of 1242217232 is 2327122421.

It can be written as a sum of positive squares in only one way, i.e., 1101177856 + 141039376 = 33184^2 + 11876^2 .

It is not an unprimeable number, because it can be changed into a prime (1242217231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38819273 + ... + 38819304.

Almost surely, 2^1242217232 is an apocalyptic number.

It is an amenable number.

1242217232 is a deficient number, since it is larger than the sum of its proper divisors (1164578686).

1242217232 is an equidigital number, since it uses as much as digits as its factorization.

1242217232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77638585 (or 77638579 counting only the distinct ones).

The product of its digits is 2688, while the sum is 26.

The square root of 1242217232 is about 35245.1022413044. The cubic root of 1242217232 is about 1074.9770269473.

Adding to 1242217232 its reverse (2327122421), we get a palindrome (3569339653).

The spelling of 1242217232 in words is "one billion, two hundred forty-two million, two hundred seventeen thousand, two hundred thirty-two".