144038402 has 8 divisors (see below), whose sum is σ = 216144912. Its totient is φ = 71990100.

The previous prime is 144038387. The next prime is 144038407. The reversal of 144038402 is 204830441.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×144038402² = 41494122501427208, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (144038407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7724 + ... + 18647.

It is an arithmetic number, because the mean of its divisors is an integer number (27018114).

Almost surely, 2^144038402 is an apocalyptic number.

144038402 is a deficient number, since it is larger than the sum of its proper divisors (72106510).

144038402 is a wasteful number, since it uses less digits than its factorization.

144038402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29104.

The product of its (nonzero) digits is 3072, while the sum is 26.

The square root of 144038402 is about 12001.5999766698. The cubic root of 144038402 is about 524.1948680853.

Adding to 144038402 its reverse (204830441), we get a palindrome (348868843).

The spelling of 144038402 in words is "one hundred forty-four million, thirty-eight thousand, four hundred two".