1224232401 has 16 divisors (see below), whose sum is σ = 1866432384. Its totient is φ = 699210624.

The previous prime is 1224232391. The next prime is 1224232421. The reversal of 1224232401 is 1042324221.

It is not a de Polignac number, because 1224232401 - 2⁶ = 1224232337 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (1224232421) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31675 + ... + 58751.

It is an arithmetic number, because the mean of its divisors is an integer number (116652024).

Almost surely, 2^1224232401 is an apocalyptic number.

It is an amenable number.

1224232401 is a deficient number, since it is larger than the sum of its proper divisors (642199983).

1224232401 is a wasteful number, since it uses less digits than its factorization.

1224232401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29240.

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 1224232401 is about 34989.0325816534. The cubic root of 1224232401 is about 1069.7639450740.

Adding to 1224232401 its reverse (1042324221), we get a palindrome (2266556622).

The spelling of 1224232401 in words is "one billion, two hundred twenty-four million, two hundred thirty-two thousand, four hundred one".