1242001232 has 20 divisors (see below), whose sum is σ = 2547929556. Its totient is φ = 584471040.

The previous prime is 1242001231. The next prime is 1242001301. The reversal of 1242001232 is 2321002421.

It can be written as a sum of positive squares in 2 ways, for example, as 895445776 + 346555456 = 29924^2 + 18616^2 .

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a self number, because there is not a number n which added to its sum of digits gives 1242001232.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1242001231) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2282819 + ... + 2283362.

Almost surely, 2^1242001232 is an apocalyptic number.

It is an amenable number.

1242001232 is an abundant number, since it is smaller than the sum of its proper divisors (1305928324).

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

1242001232 is a wasteful number, since it uses less digits than its factorization.

1242001232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4566206 (or 4566200 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 1242001232 is about 35242.0378525420. The cubic root of 1242001232 is about 1074.9147167246.

Adding to 1242001232 its reverse (2321002421), we get a palindrome (3563003653).

The spelling of 1242001232 in words is "one billion, two hundred forty-two million, one thousand, two hundred thirty-two".