1232400442 has 32 divisors (see below), whose sum is σ = 2323625472. Its totient is φ = 477166464.

The previous prime is 1232400371. The next prime is 1232400469. The reversal of 1232400442 is 2440042321.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 63483 + ... + 80590.

It is an arithmetic number, because the mean of its divisors is an integer number (72613296).

Almost surely, 2^1232400442 is an apocalyptic number.

1232400442 is a deficient number, since it is larger than the sum of its proper divisors (1091225030).

1232400442 is a wasteful number, since it uses less digits than its factorization.

1232400442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144142.

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 1232400442 is about 35105.5614112636. The cubic root of 1232400442 is about 1072.1378174756.

Adding to 1232400442 its reverse (2440042321), we get a palindrome (3672442763).

The spelling of 1232400442 in words is "one billion, two hundred thirty-two million, four hundred thousand, four hundred forty-two".