144402433 has 16 divisors (see below), whose sum is σ = 173163520. Its totient is φ = 117806400.

The previous prime is 144402431. The next prime is 144402439. The reversal of 144402433 is 334204441.

It is a cyclic number.

It is not a de Polignac number, because 144402433 - 2¹ = 144402431 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 144402398 and 144402407.

It is not an unprimeable number, because it can be changed into a prime (144402431) 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, 7783 + ... + 18691.

It is an arithmetic number, because the mean of its divisors is an integer number (10822720).

Almost surely, 2^144402433 is an apocalyptic number.

It is an amenable number.

144402433 is a deficient number, since it is larger than the sum of its proper divisors (28761087).

144402433 is a wasteful number, since it uses less digits than its factorization.

144402433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11008.

The product of its (nonzero) digits is 4608, while the sum is 25.

The square root of 144402433 is about 12016.7563427075. The cubic root of 144402433 is about 524.6360991452.

Adding to 144402433 its reverse (334204441), we get a palindrome (478606874).

The spelling of 144402433 in words is "one hundred forty-four million, four hundred two thousand, four hundred thirty-three".