144405434 has 16 divisors (see below), whose sum is σ = 229044480. Its totient is φ = 68091840.

The previous prime is 144405433. The next prime is 144405517. The reversal of 144405434 is 434504441.

It is a junction number, because it is equal to n+sod(n) for n = 144405397 and 144405406.

It is not an unprimeable number, because it can be changed into a prime (144405433) 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, 47 + ... + 16994.

It is an arithmetic number, because the mean of its divisors is an integer number (14315280).

Almost surely, 2^144405434 is an apocalyptic number.

144405434 is a deficient number, since it is larger than the sum of its proper divisors (84639046).

144405434 is a wasteful number, since it uses less digits than its factorization.

144405434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17285.

The product of its (nonzero) digits is 15360, while the sum is 29.

The square root of 144405434 is about 12016.8812093654. The cubic root of 144405434 is about 524.6397334838.

Adding to 144405434 its reverse (434504441), we get a palindrome (578909875).

The spelling of 144405434 in words is "one hundred forty-four million, four hundred five thousand, four hundred thirty-four".