1233440142 has 32 divisors (see below), whose sum is σ = 2721392640. Its totient is φ = 369568320.

The previous prime is 1233440107. The next prime is 1233440149. The reversal of 1233440142 is 2410443321.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1233440149) 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, 99118 + ... + 110865.

It is an arithmetic number, because the mean of its divisors is an integer number (85043520).

Almost surely, 2^1233440142 is an apocalyptic number.

1233440142 is an abundant number, since it is smaller than the sum of its proper divisors (1487952498).

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

1233440142 is a wasteful number, since it uses less digits than its factorization.

1233440142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210088.

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

The square root of 1233440142 is about 35120.3664844204. The cubic root of 1233440142 is about 1072.4392315100.

Adding to 1233440142 its reverse (2410443321), we get a palindrome (3643883463).

The spelling of 1233440142 in words is "one billion, two hundred thirty-three million, four hundred forty thousand, one hundred forty-two".