144402004042 has 32 divisors (see below), whose sum is σ = 227239506000. Its totient is φ = 68746249728.

The previous prime is 144402004001. The next prime is 144402004157. The reversal of 144402004042 is 240400204441.

It can be written as a sum of positive squares in 8 ways, for example, as 135226088361 + 9175915681 = 367731^2 + 95791^2 .

It is a junction number, because it is equal to n+sod(n) for n = 144402003998 and 144402004016.

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, 1478334 + ... + 1572982.

Almost surely, 2^144402004042 is an apocalyptic number.

144402004042 is a deficient number, since it is larger than the sum of its proper divisors (82837501958).

144402004042 is a wasteful number, since it uses less digits than its factorization.

144402004042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95130.

The product of its (nonzero) digits is 4096, while the sum is 25.

Adding to 144402004042 its reverse (240400204441), we get a palindrome (384802208483).

The spelling of 144402004042 in words is "one hundred forty-four billion, four hundred two million, four thousand, forty-two".