1234432401 has 4 divisors (see below), whose sum is σ = 1645909872. Its totient is φ = 822954932.

The previous prime is 1234432391. The next prime is 1234432411. The reversal of 1234432401 is 1042344321.

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: 1042344321 = 3 ⋅347448107.

It is an interprime number because it is at equal distance from previous prime (1234432391) and next prime (1234432411).

It is a cyclic number.

It is not a de Polignac number, because 1234432401 - 2⁹ = 1234431889 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1234432411) 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, 205738731 + ... + 205738736.

It is an arithmetic number, because the mean of its divisors is an integer number (411477468).

Almost surely, 2^1234432401 is an apocalyptic number.

It is an amenable number.

1234432401 is a deficient number, since it is larger than the sum of its proper divisors (411477471).

1234432401 is an equidigital number, since it uses as much as digits as its factorization.

1234432401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 411477470.

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 1234432401 is about 35134.4901912636. The cubic root of 1234432401 is about 1072.7267342478.

Adding to 1234432401 its reverse (1042344321), we get a palindrome (2276776722).

The spelling of 1234432401 in words is "one billion, two hundred thirty-four million, four hundred thirty-two thousand, four hundred one".