144431434 has 16 divisors (see below), whose sum is σ = 250732800. Its totient is φ = 61115184.

The previous prime is 144431429. The next prime is 144431437. The reversal of 144431434 is 434134441.

It is a happy number.

144431434 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (144431437) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64189 + ... + 66400.

It is an arithmetic number, because the mean of its divisors is an integer number (15670800).

Almost surely, 2^144431434 is an apocalyptic number.

144431434 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

144431434 is a deficient number, since it is larger than the sum of its proper divisors (106301366).

144431434 is a wasteful number, since it uses less digits than its factorization.

144431434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130677.

The product of its digits is 9216, while the sum is 28.

The square root of 144431434 is about 12017.9629721513. The cubic root of 144431434 is about 524.6712184820.

Adding to 144431434 its reverse (434134441), we get a palindrome (578565875).

The spelling of 144431434 in words is "one hundred forty-four million, four hundred thirty-one thousand, four hundred thirty-four".