1204242401 has 4 divisors (see below), whose sum is σ = 1267623600. Its totient is φ = 1140861204.

The previous prime is 1204242373. The next prime is 1204242407. The reversal of 1204242401 is 1042424021.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1042424021 = 10651 ⋅97871.

It is a cyclic number.

It is not a de Polignac number, because 1204242401 - 2²² = 1200048097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1204242407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31690571 + ... + 31690608.

It is an arithmetic number, because the mean of its divisors is an integer number (316905900).

Almost surely, 2^1204242401 is an apocalyptic number.

It is an amenable number.

1204242401 is a deficient number, since it is larger than the sum of its proper divisors (63381199).

1204242401 is an equidigital number, since it uses as much as digits as its factorization.

1204242401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63381198.

The product of its (nonzero) digits is 512, while the sum is 20.

The square root of 1204242401 is about 34702.1959103455. The cubic root of 1204242401 is about 1063.9093807087.

Adding to 1204242401 its reverse (1042424021), we get a palindrome (2246666422).

It can be divided in two parts, 1 and 204242401, that added together give a palindrome (204242402).

The spelling of 1204242401 in words is "one billion, two hundred four million, two hundred forty-two thousand, four hundred one".